[AMRadio] transformer rattle - kill or cure?
I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? 73 Max -- I am using the free version of SPAMfighter. We are a community of 6 million users fighting spam. SPAMfighter has removed 2223 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
On Wed, Dec 23, 2009 at 10:39 AM, AirRadio airra...@dsl.pipex.com wrote: I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? Sounds like it abates once things settle in thermally.The simple approach I'd try first Max is to check the tension on any securing bolts through the transformer laminations or chassis. Sometimes that takes care of it. Other methods include removing the transformer and re-sealing the laminations it in hot varnish, or isolating the transformer from the chassis on rubber bushings. The latter is not a good idea IMO due to safety concerns with internal shorts which would otherwise become apparent when the case is grounded to the chassis. Gary WZ1M is a member of this list and has a transformer rebuilding business, so he can certainly provide you with some pointers. I think Don K4KYV and a few others have successfully dealt with similar problems with success. It might be as simple as tossing he transformer in the oven for a while on its own if tightening the bolts doesn't cure it. ~ Todd, KA1KAQ/4 __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
As a broadcast engineer I have seen (or heard) transformers rattle as you've described. My suggestion would be to let it be, especially if it stops after a while. It sounds to me like it rattles when it's cold and stops after it warms up. Does the noise gradually subside or just quit abruptly? It is annoying to listen to the laminations rattle but it would be even more annoying to try to fix one problem and create another. Some transformer windings are spaced apart and spacers may loosen some when they're cool and tighten up after they warm up. I used to have one that did that and it really bothered me until I talked to the factory guy and he explained what was happening. Even worse than transformer laminations rattling is hearing a bank of SCRs grunting and groaning. (I'll bet some on this list even know which line of transmitters I'm talking about.) Happy Holidays to all! Steve White, W5SAW Todd, KA1KAQ wrote: On Wed, Dec 23, 2009 at 10:39 AM, AirRadio airra...@dsl.pipex.com wrote: I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? Sounds like it abates once things settle in thermally.The simple approach I'd try first Max is to check the tension on any securing bolts through the transformer laminations or chassis. Sometimes that takes care of it. Other methods include removing the transformer and re-sealing the laminations it in hot varnish, or isolating the transformer from the chassis on rubber bushings. The latter is not a good idea IMO due to safety concerns with internal shorts which would otherwise become apparent when the case is grounded to the chassis. Gary WZ1M is a member of this list and has a transformer rebuilding business, so he can certainly provide you with some pointers. I think Don K4KYV and a few others have successfully dealt with similar problems with success. It might be as simple as tossing he transformer in the oven for a while on its own if tightening the bolts doesn't cure it. ~ Todd, KA1KAQ/4 __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
You might remove one of the end bells and try inserting something between the bobbin and the laminations at the end. Maybe that is a mite loose. Jim/W5JO On Wed, Dec 23, 2009 at 10:39 AM, AirRadio airra...@dsl.pipex.com wrote: I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? Sounds like it abates once things settle in thermally.The simple approach I'd try first Max is to check the tension on any securing bolts through the transformer laminations or chassis. Sometimes that takes care of it. Other methods include removing the transformer and re-sealing the laminations it in hot varnish, or isolating the transformer from the chassis on rubber bushings. The latter is not a good idea IMO due to safety concerns with internal shorts which would otherwise become apparent when the case is grounded to the chassis. Gary WZ1M is a member of this list and has a transformer rebuilding business, so he can certainly provide you with some pointers. I think Don K4KYV and a few others have successfully dealt with similar problems with success. It might be as simple as tossing he transformer in the oven for a while on its own if tightening the bolts doesn't cure it. ~ Todd, KA1KAQ/4 Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
Forgot to mention, if you do set the transformer on rubber feet be sure to electrically ground the frame to the chassis to maintain the integrity of the safety ground just in case of a winding fault. Stevan A. White wrote: As a broadcast engineer I have seen (or heard) transformers rattle as you've described. My suggestion would be to let it be, especially if it stops after a while. It sounds to me like it rattles when it's cold and stops after it warms up. Does the noise gradually subside or just quit abruptly? It is annoying to listen to the laminations rattle but it would be even more annoying to try to fix one problem and create another. Some transformer windings are spaced apart and spacers may loosen some when they're cool and tighten up after they warm up. I used to have one that did that and it really bothered me until I talked to the factory guy and he explained what was happening. Even worse than transformer laminations rattling is hearing a bank of SCRs grunting and groaning. (I'll bet some on this list even know which line of transmitters I'm talking about.) Happy Holidays to all! Steve White, W5SAW __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
Max - Is this your BC-610E? If it is, I believe they use open frame transformers. They are also difficult to get to. In that instance, I'd try to look at the wedges between the bobbin and the laminations. Try to tighten them a hair. Bob - N0DGN On Wed, Dec 23, 2009 at 10:39 AM, AirRadio airra...@dsl.pipex.com wrote: I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
Bob, No this is in a Drake R-4c, that is why it is a tad irritating, if it was in the '610 it would probably not notice so much, also I have spares for all of them. I have removed it and am going to leave it in a pot of varnish overnight, better not put it in the oven the Turkey might taste a bit odd on the 25th ;-) it will either make no difference or will sort it, all the laminations look tight and it is already varnished maybe there is a small looseness somewhere however the bobbin looks tight enough. it is 30 years old though maybe something has moved over time. 73 Max M0GHQ/KJ4ISS - Original Message - From: rbethman rbeth...@comcast.net To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Wednesday, December 23, 2009 5:23 PM Subject: Re: [AMRadio] transformer rattle - kill or cure? Max - Is this your BC-610E? If it is, I believe they use open frame transformers. They are also difficult to get to. In that instance, I'd try to look at the wedges between the bobbin and the laminations. Try to tighten them a hair. Bob - N0DGN On Wed, Dec 23, 2009 at 10:39 AM, AirRadio airra...@dsl.pipex.com wrote: I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.117/2582 - Release Date: 12/22/09 18:22:00 -- I am using the free version of SPAMfighter. We are a community of 6 million users fighting spam. SPAMfighter has removed 2223 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
Hi, I used to rebuild motors and transformers and the older ones never seemed to keep the laminations tight or bonded. We used to take older ones and put them in an oven for a couple of hours at 150 or so degrees. Then put them submerged in a tank of thinned varnish for about 10 minutes. Pull them out and wipe off the excess varnish and cool overnight. Heating the core seems to invite the thinned varnish to penetrate deeper into the laminations. This always kept the cores quiet. Its a little messy, but works. Good Luck. Mel, --- On Wed, 12/23/09, rbethman rbeth...@comcast.net wrote: From: rbethman rbeth...@comcast.net Subject: Re: [AMRadio] transformer rattle - kill or cure? To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Date: Wednesday, December 23, 2009, 9:23 AM Max - Is this your BC-610E? If it is, I believe they use open frame transformers. They are also difficult to get to. In that instance, I'd try to look at the wedges between the bobbin and the laminations. Try to tighten them a hair. Bob - N0DGN On Wed, Dec 23, 2009 at 10:39 AM, AirRadio airra...@dsl.pipex.com wrote: I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
You say, latest boatanchor, which mite mean that the transformer is becoming saturated to much from an over load condition. This would cause a rattle. I have read the other posts and the preheat and a COUPLE of dips in varnish would more than likely, cure your problem. Check out those filter caps. Regards, Gary...WZ1M - Original Message - From: AirRadio airra...@dsl.pipex.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Wednesday, December 23, 2009 10:39 AM Subject: [AMRadio] transformer rattle - kill or cure? I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? 73 Max -- I am using the free version of SPAMfighter. We are a community of 6 million users fighting spam. SPAMfighter has removed 2223 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
Gary, Just gone through a massive lightening storm here a moment ago so everything was off for a while, yes the caps are Ok, I have actually swapped out the transformer and tried it under a light load, exactly the same, I will be 'hot dipping' this evening see how it is tomorrow, fingers crossed here goes. 73 Max M0GHQ/KJ4ISS - Original Message - From: Gary xfr...@roadrunner.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Wednesday, December 23, 2009 6:48 PM Subject: Re: [AMRadio] transformer rattle - kill or cure? You say, latest boatanchor, which mite mean that the transformer is becoming saturated to much from an over load condition. This would cause a rattle. I have read the other posts and the preheat and a COUPLE of dips in varnish would more than likely, cure your problem. Check out those filter caps. Regards, Gary...WZ1M - Original Message - From: AirRadio airra...@dsl.pipex.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Wednesday, December 23, 2009 10:39 AM Subject: [AMRadio] transformer rattle - kill or cure? I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? 73 Max -- I am using the free version of SPAMfighter. We are a community of 6 million users fighting spam. SPAMfighter has removed 2223 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.117/2582 - Release Date: 12/22/09 18:22:00 -- I am using the free version of SPAMfighter. We are a community of 6 million users fighting spam. SPAMfighter has removed 2223 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] transformer rattle - kill or cure?
Max: While its out, it would not hurt a thing to give it several dips. Regards, TRS Gary...WZ1M - Original Message - From: AirRadio airra...@dsl.pipex.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Wednesday, December 23, 2009 1:54 PM Subject: Re: [AMRadio] transformer rattle - kill or cure? Gary, Just gone through a massive lightening storm here a moment ago so everything was off for a while, yes the caps are Ok, I have actually swapped out the transformer and tried it under a light load, exactly the same, I will be 'hot dipping' this evening see how it is tomorrow, fingers crossed here goes. 73 Max M0GHQ/KJ4ISS - Original Message - From: Gary xfr...@roadrunner.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Wednesday, December 23, 2009 6:48 PM Subject: Re: [AMRadio] transformer rattle - kill or cure? You say, latest boatanchor, which mite mean that the transformer is becoming saturated to much from an over load condition. This would cause a rattle. I have read the other posts and the preheat and a COUPLE of dips in varnish would more than likely, cure your problem. Check out those filter caps. Regards, Gary...WZ1M - Original Message - From: AirRadio airra...@dsl.pipex.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Wednesday, December 23, 2009 10:39 AM Subject: [AMRadio] transformer rattle - kill or cure? I have a mains transformer in my latest boatanchor, it is rattling like mad, eventually goes away after an hour or so, I thought about dropping it in a can of varnish, anyone cured one before, any luck or waste of time? 73 Max -- I am using the free version of SPAMfighter. We are a community of 6 million users fighting spam. SPAMfighter has removed 2223 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.117/2582 - Release Date: 12/22/09 18:22:00 -- I am using the free version of SPAMfighter. We are a community of 6 million users fighting spam. SPAMfighter has removed 2223 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[AMRadio] Transformer
Looking for an interstage audio transformer. PP plates to PPgrids with a 5 to 1 ratio min. A thordarson 20D79 would be ideal. Please reply off list. Thanks for looking. 73 K6KWQ Dick Amps by MORE POWER __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] Transformer/Choke
Does anyone have a reference for a UTC PA-109 choke? All I've found so far is UTC Varimatch Transformer manuals. I'm just wondering what the inductance and current rating is. Rick/K5IAR 5-25 henry swinging choke. 5 hy @ 500MA, 25 hy@ 50MA. This is the same thing as the CG-109, except that the case style is different. The PA series is the original. PA stands for Public Address. In about 1949, they changed the PA series to CG, which stands for Commercial Grade. For a large selection of transformer catalogues and specifications in PDF format, go to: http://www.bunkerofdoom.com/xfm/index.html Don k4kyv __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Transformer info needed
Ive had these on a back shelf for years awaiting a resurgence in my AM interest. Thordarson 6424, 8140 UTC CIC-2 (same as C-2?) These may be Thordarson but the only # is stamped in the bell: 1221E, 3053, 3211, 3552 Any ID help appreciated. Carl KM1H __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Lead Dress
Resent Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: David Knepper [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Tuesday, December 11, 2007 7:04 AM Subject: Re: [AMRadio] Transformer Lead Dress Try shrink tubing. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Tuesday, December 11, 2007 1:00 AM Subject: [AMRadio] Transformer Lead Dress Hello, I just stripped out a basket case VK II transmitter for rebuilding. Most of the transformer leads are brittle and even carefully removing them thru the chassis hole, I can feel the rubber inner jacket breaking up. I would expect to replace the wires near as I can get to the windings. The plate transformer will need good HT wire. I have quite a bit of different sizes of silver teflon. for most of the windings but not quite sure what to do about the HT wires. This is a project transmitter, not a restoration. Suggestons? Sources of suitable wire in an affordable put up. I have other large transformers with the same problem as well. Thanks, Bill, KB3DKS/1 __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Transformer Rewind
Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
Dave, contact Gary/WZ1M at [EMAIL PROTECTED] He has done work for me and does a good job. Jim/W5JO Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
Thanks, Jim Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Jim Wilhite [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Sunday, December 16, 2007 9:54 AM Subject: Re: [AMRadio] Transformer Rewind Dave, contact Gary/WZ1M at [EMAIL PROTECTED] He has done work for me and does a good job. Jim/W5JO Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
Jim, his email bounced. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Jim Wilhite [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Sunday, December 16, 2007 9:54 AM Subject: Re: [AMRadio] Transformer Rewind Dave, contact Gary/WZ1M at [EMAIL PROTECTED] He has done work for me and does a good job. Jim/W5JO Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Transformer Rewind
Dave.. As always I personally recommend Gary, WZ1M. He has done several for me and the work is excellent, quick turn around and the price is right. I highly recommend him. He is located at: [EMAIL PROTECTED] Rick/K5IAR Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
Thanks, Rick. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net Sent: Sunday, December 16, 2007 11:15 AM Subject: RE: [AMRadio] Transformer Rewind Dave.. As always I personally recommend Gary, WZ1M. He has done several for me and the work is excellent, quick turn around and the price is right. I highly recommend him. He is located at: [EMAIL PROTECTED] Rick/K5IAR Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Transformer Rewind
Dave, Wanted to mention with the 75A-1, I turned it back on and tried all bands, hearing only 2 signals on 40 and 40 meters. I don't know how many coils there are that could be affected by the 75 meter AM zap. I really think I should pay something for these, please. Or, I'll send you a box of my gourmet spice. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 W9DVM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Knepper Sent: Sunday, December 16, 2007 11:24 AM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Transformer Rewind Thanks, Rick. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net Sent: Sunday, December 16, 2007 11:15 AM Subject: RE: [AMRadio] Transformer Rewind Dave.. As always I personally recommend Gary, WZ1M. He has done several for me and the work is excellent, quick turn around and the price is right. I highly recommend him. He is located at: [EMAIL PROTECTED] Rick/K5IAR Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Transformer Rewind
Phil, you may want to rewind the coil. Take a look at what you may have done before you jump to the answer. Best 73's Peter K2LRC www.k2lrc.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Phil LaMarche Sent: Sunday, December 16, 2007 11:52 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] Transformer Rewind Dave, Wanted to mention with the 75A-1, I turned it back on and tried all bands, hearing only 2 signals on 40 and 40 meters. I don't know how many coils there are that could be affected by the 75 meter AM zap. I really think I should pay something for these, please. Or, I'll send you a box of my gourmet spice. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 W9DVM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Knepper Sent: Sunday, December 16, 2007 11:24 AM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Transformer Rewind Thanks, Rick. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net Sent: Sunday, December 16, 2007 11:15 AM Subject: RE: [AMRadio] Transformer Rewind Dave.. As always I personally recommend Gary, WZ1M. He has done several for me and the work is excellent, quick turn around and the price is right. I highly recommend him. He is located at: [EMAIL PROTECTED] Rick/K5IAR Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Lead Dress Dave
Re-sent From: David Knepper Try shrink tubing. That works for minor cracks and breaks in the insulation but these leads are so brittle that replacement is called for especially with the plate transformer at close to 2kv RMS. Heat shrink is also not very flexable but I might use it for the LV transformer and choke. I'm going to be turning this VK II chassis into an externally modulated RF deck. Thanks, Wm. KB3DKS/1 More new features than ever. Check out the new AOL Mail ! - http://webmail.aol.com __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
There is a reason my email bounced. Its XFRMRS, not XFRMS. My email is [EMAIL PROTECTED] Regards, Gary...WZ1M - Original Message - From: David Knepper [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Sunday, December 16, 2007 9:58 AM Subject: Re: [AMRadio] Transformer Rewind Jim, his email bounced. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Jim Wilhite [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Sunday, December 16, 2007 9:54 AM Subject: Re: [AMRadio] Transformer Rewind Dave, contact Gary/WZ1M at [EMAIL PROTECTED] He has done work for me and does a good job. Jim/W5JO Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
Thanks, Gary for that correction. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Gary [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Sunday, December 16, 2007 12:27 PM Subject: Re: [AMRadio] Transformer Rewind There is a reason my email bounced. Its XFRMRS, not XFRMS. My email is [EMAIL PROTECTED] Regards, Gary...WZ1M - Original Message - From: David Knepper [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Sunday, December 16, 2007 9:58 AM Subject: Re: [AMRadio] Transformer Rewind Jim, his email bounced. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Jim Wilhite [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Sunday, December 16, 2007 9:54 AM Subject: Re: [AMRadio] Transformer Rewind Dave, contact Gary/WZ1M at [EMAIL PROTECTED] He has done work for me and does a good job. Jim/W5JO Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
Jim Wilhite wrote: Dave, contact Gary/WZ1M at [EMAIL PROTECTED] He has done work for me and does a good job. Jim/W5JO Gary's gonna be a busy beaver, since the announcement that Peter Dahl in El Paso has closed it's doors and is taking no more orders... and their shelves are empty of transformers. -- Driving your AM Rig without a scope, is like driving your car at night, without headlights. (K4KYV) -- 73 = Best Regards, -Geoff/W5OMR __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Transformer Rewind
Thank you Peter. I am told many wonderful things about you from my friend Cliff, W4NJ, who has admired your services and work. Howard just restored and painted my Collins speaker and it looks like new. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 W9DVM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Wittenberg Sent: Sunday, December 16, 2007 12:02 PM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] Transformer Rewind Phil, you may want to rewind the coil. Take a look at what you may have done before you jump to the answer. Best 73's Peter K2LRC www.k2lrc.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Phil LaMarche Sent: Sunday, December 16, 2007 11:52 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] Transformer Rewind Dave, Wanted to mention with the 75A-1, I turned it back on and tried all bands, hearing only 2 signals on 40 and 40 meters. I don't know how many coils there are that could be affected by the 75 meter AM zap. I really think I should pay something for these, please. Or, I'll send you a box of my gourmet spice. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 W9DVM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Knepper Sent: Sunday, December 16, 2007 11:24 AM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Transformer Rewind Thanks, Rick. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net Sent: Sunday, December 16, 2007 11:15 AM Subject: RE: [AMRadio] Transformer Rewind Dave.. As always I personally recommend Gary, WZ1M. He has done several for me and the work is excellent, quick turn around and the price is right. I highly recommend him. He is located at: [EMAIL PROTECTED] Rick/K5IAR Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Lead Dress Dave
They do make a shrink tubing with a type of sealant inside. We used to use these when I worked at Babcock Wilcox. They are somewhat stiff but I think it maintain insulation at 2KV potential. Mod-U-Lator, Mike(y) W3SLK That works for minor cracks and breaks in the insulation but these leads are so brittle that replacement is called for especially with the plate transformer at close to 2kv RMS. Heat shrink is also not very flexable but I might use it for the LV transformer and choke. I'm going to be turning this VK II chassis into an externally modulated RF deck. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
The input coil is common to all bands in the 75A1, the secondary is then fed to the band switch. Check the antenna coil primary first and then the secondary for continuity. Rewinding shouldnt be that hard if the form hasnt been destroyed. The hardest part will be removing it from the assembly. Carl KM1H - Original Message - From: Peter Wittenberg [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net Sent: Sunday, December 16, 2007 12:02 PM Subject: RE: [AMRadio] Transformer Rewind Phil, you may want to rewind the coil. Take a look at what you may have done before you jump to the answer. Best 73's Peter K2LRC www.k2lrc.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Phil LaMarche Sent: Sunday, December 16, 2007 11:52 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] Transformer Rewind Dave, Wanted to mention with the 75A-1, I turned it back on and tried all bands, hearing only 2 signals on 40 and 40 meters. I don't know how many coils there are that could be affected by the 75 meter AM zap. I really think I should pay something for these, please. Or, I'll send you a box of my gourmet spice. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 W9DVM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Knepper Sent: Sunday, December 16, 2007 11:24 AM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Transformer Rewind Thanks, Rick. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net Sent: Sunday, December 16, 2007 11:15 AM Subject: RE: [AMRadio] Transformer Rewind Dave.. As always I personally recommend Gary, WZ1M. He has done several for me and the work is excellent, quick turn around and the price is right. I highly recommend him. He is located at: [EMAIL PROTECTED] Rick/K5IAR Need two transformers rewound: Power transformer from an HT-32A Collins 516F-2 Thank you Dave, W3ST - W3CRA Collins Radio Association __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Rewind
jeremy-ca wrote: The input coil is common to all bands in the 75A1, the secondary is then fed to the band switch. Check the antenna coil primary first and then the secondary for continuity. Rewinding shouldnt be that hard if the form hasnt been destroyed. The hardest part will be removing it from the assembly. A couple of decades ago, I accidently dumped a few hundred watts of RF directly into the front-end of an SX-73, on 75m. The input coil took the brunt of the damage. John Mohn/W5MEU(sk) told me to come out there and get some 24ga copper wire to re-wind that coil. Very carefully, I removed the phoenelic board from the turret in which the coil was installed, then ever so-much-more carefully, removed the coil from the board. There was a spot on the coil that -wasn't- burnt, so I was able to count turns, and re-wind the coil. Luckily, I was working at Southwest Research Institute at the time, and was able to utilize a small-wattage iron, some organic stripper and a magnifying glass to re-solder the connections. -- Driving your AM Rig without a scope, is like driving your car at night, without headlights. (K4KYV) -- 73 = Best Regards, -Geoff/W5OMR __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Lead Dress
Since you are not dealing with any real HV any 600V rated wire will be fine as the actual breakdown is around 2-3 times that. They werent that fussy back then. USA made VOM test leads are a good source of HV wire up to 5KV or so depending on their original use. Ive used them in many 2-3KV supplies over the years. Old ones can also get brittle so be carefull what you get. Teflon is good for HV BUT it is very easily nicked and damaged. Carl KM1H - Original Message - From: David Knepper [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Tuesday, December 11, 2007 7:04 AM Subject: Re: [AMRadio] Transformer Lead Dress Try shrink tubing. Dave, W3ST - W3CRA Collins Radio Association www.collinsra.com Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every day and Monday at 3805 at 8 PM EDST - Original Message - From: [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Tuesday, December 11, 2007 1:00 AM Subject: [AMRadio] Transformer Lead Dress Hello, I just stripped out a basket case VK II transmitter for rebuilding. Most of the transformer leads are brittle and even carefully removing them thru the chassis hole, I can feel the rubber inner jacket breaking up. I would expect to replace the wires near as I can get to the windings. The plate transformer will need good HT wire. I have quite a bit of different sizes of silver teflon. for most of the windings but not quite sure what to do about the HT wires. This is a project transmitter, not a restoration. Suggestons? Sources of suitable wire in an affordable put up. I have other large transformers with the same problem as well. Thanks, Bill, KB3DKS/1 __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Transformer Lead Dress
Bill, KB3DKS/1 wrote: Message: 4 Date: Tue, 11 Dec 2007 01:00:48 -0500 From: [EMAIL PROTECTED] Subject: [AMRadio] Transformer Lead Dress To: amradio@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=iso-8859-1 Hello, I just stripped out a basket case VK II transmitter for rebuilding. Most of the transformer leads are brittle and even carefully removing them thru the chassis hole, I can feel the rubber inner jacket breaking up. I would expect to replace the wires near as I can get to the windings. The plate transformer will need good HT wire. I have quite a bit of different sizes of silver teflon. for most of the windings but not quite sure what to do about the HT wires. This is a project transmitter, not a restoration. Suggestons? Sources of suitable wire in an affordable put up. I have other large transformers with the same problem as well. Thanks, Bill, KB3DKS/1 Reply by Jim, WD5JKO: Bill, I went through this a few years ago on a Sherwood tube type stereo amplifier. See link below for some pictures. http://pages.prodigy.net/jcandela/Sherwood_S8000/Transformer/ I spliced new wires onto the tinned leads, and used heatshrink for the insulation over the joint. Then I folded the wires back and taped them over the winding area. What started out looking like a total loss ended up good. I skipped dipping in transformer varnish along with a vacuum chamber to suck out the air so that the varnish would fill all the internal pores that have been created since the old potting material had disintegrated. So far after nearly 4 years, my trusty Sherwood S800 is working fine. Jim JKO __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer Lead Dress
I found some silicone high voltage wire in an old pager transmitter someone gave me. It ran a 4-400 at 3000 volts, FM at about 70 mhz. The silicone wire was about as thick as regular 18 gauge stranded hookup wire, was white, and good for 10kv! On some old iron, I cut the old wires off inside the shell, and used heat shrink over the splice, and it works great, and is a perminent nice looking fix. Brett N2DTS - Original Message - From: [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Tuesday, December 11, 2007 1:00 AM Subject: [AMRadio] Transformer Lead Dress Hello, I just stripped out a basket case VK II transmitter for rebuilding. Most of the transformer leads are brittle and even carefully removing them thru the chassis hole, I can feel the rubber inner jacket breaking up. I would expect to replace the wires near as I can get to the windings. The plate transformer will need good HT wire. I have quite a bit of different sizes of silver teflon. for most of the windings but not quite sure what to do about the HT wires. This is a project transmitter, not a restoration. Suggestons? Sources of suitable wire in an affordable put up. I have other large transformers with the same problem as well. Thanks, Bill, KB3DKS/1 __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Transformer Lead Dress
Hello, I just stripped out a basket case VK II transmitter for rebuilding. Most of the transformer leads are brittle and even carefully removing them thru the chassis hole, I can feel the rubber inner jacket breaking up. I would expect to replace the wires near as I can get to the windings. The plate transformer will need good HT wire. I have quite a bit of different sizes of silver teflon. for most of the windings but not quite sure what to do about the HT wires. This is a project transmitter, not a restoration. Suggestons? Sources of suitable wire in an affordable put up. I have other large transformers with the same problem as well. Thanks, Bill, KB3DKS/1 __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Transformer theory
Passing this along, from the Amrad mail group. http://www.midcom-inc.com/Tech/pdf/TN69.pdf Bacon, WA3WDR __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformer baking Recovery
Thanks Joe. 73, John, K5PGW --- crawfish [EMAIL PROTECTED] wrote: John, I received a Word document from W4AEE about this very subject. I am having problems with Word on this computer, so I can't forward, but you might want to check with him.He is on this reflector from time to time. Joe W4AAB - Original Message - From: John King [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Monday, December 18, 2006 11:32 PM Subject: Re: [AMRadio] Transformer baking Recovery Did John, WA5BXO, bake the transformers? I have a nice BC 610 E that has been in the State of Kentucky until a couple of years ago ( not Gulf Coast humidity) and in my enclosed garqage in South Louisiana for about two years. I plan to fire it up soon and an wondering if I should apply heat with heat lamps or electric heaters and for how long? Any ideas? Thanks, and 73, John, K5PGW --- Geoff/W5OMR [EMAIL PROTECTED] wrote: Rbethman wrote: Folks, Most of us have power, mod, audio, and other transformers that have been due to storage requirements, exposed to humidity. John/WA5BXO had a modulation transformer, and reactor soaked in Spring Creek for 3 months, or thereabouts. The year was 1998, when they lost everything in the worst flooding of North Houston ever recorded. Those pieces of iron are still on the air, today. -- 73 __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
[AMRadio] Transformer baking Recovery
Folks, Most of us have power, mod, audio, and other transformers that have been due to storage requirements, exposed to humidity. The 90 Deg C temp converts to 194 Deg F. This would seem to be a starting point for a multiple hour bake session. My Electric stove/oven has a 200 Deg F setting. I plan to make some baking runs on xfmrs for periods between 2 to 4 hours. This SHOULD take care of simple humidity issues. Dealing with REAL MOISTURE issues is someplace I've been. The year was 1975. My team and I were installing a replacement 1500KW, 4160VAC, 230A 60 Hz synchronous generator. We were located on the Island of American Samoa. The military transport folks, for reason never determined, had left this in an unprotected wood shipping crate. This crate sat OUTSIDE for about weeks in the summer tropical environment AND rains. We acquired about 12 floodlights, sockets, wiring, and plugs. We removed the end bells and confirmed a Depot Rebuilt assembly that was indeed SOAKED. We baked it with the end bells OFF for two weeks in a water-proof shelter. Testing was performed with first a Megger, then followed by a Hi-Pot. We determined that our effort was successful. Several days later, we installed it, aligned it with the prime mover, and then, crossing our fingers, started the generator, flashed its field, and achieved full output voltage. We did a careful step loading until we reached full power of 1500KW 4160 3 Phase VAC at a power factor of 0.8. It was run for 72 hours in that condition. It performed flawlessly. To MY knowledge, this piece of equipment operated for at LEAST four years without failure. Baking works! WE just shouldn't have to go to THOSE extremes to safely recover OUR transformers. Unless we have managed to let them get WET. Bob - N0DGN -- Bob - NØDGN +--+ | \\//CraftyBob - WitchDoctor \\// | | (@ @) Bob Bethman - NØDGN(@ @) | +---oOOo-(_)-oOOo--oOOo-(_)-oOOo---+ | NØDGN AMRadio Manassas, VA|REAL Tube Radio and AM| +---+--+ | Manassas Radio - Home of Homemade Kielbasa Pirogi| +---+--+ | Bob Bethman\\\|/// The absence of a danger | | rbethman(at)comcast.net \\ ~ ~ // signal does *NOT* mean | | (/ @ @ /) that everything is OK | +-oOOo-(_)-oOOo+ | http://home.comcast.net/~rbethman| | 1 BC-61ØI w/BC-614I,1 T-213/GRC-26 w/BC614I,1 '51 Collins R-39ØA | | SP-6ØØ/NR Type 159, Heath DX-6Ø, Apache, Mohawk, SX-1Ø1, HT-32A | +---.oooO---Oooo.---.oooO---Oooo.--+ | () ()Opinions expressed are that() () | |\ ( ) /of my own and do not \ ( ) / | | \_ ) ( _/represent those of ANYONE else \_ ) ( _/| +--+ | Amateur Astronomer - Celestron Nexstar 8 Meade ETX-6Ø | | 38 Deg 46'48.62' N - 77 Deg 28'26.89 W | +--.oooO---Oooo.---+ | () () | | \ ( ) /| |\_ ) ( _/ | |ALL E-mail received and sent scanned by AVG | +--+ __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Transformer baking Recovery
How the HELL are you? Also Greasy Seasonings there old soldier! I feel your info will fall on deaf ears at this time of year. I am trying to be civilized here in Buffalo, but without radios to play with It Just ain't working, so right now I am doing the Bachelor thing at work, not bad really. Got all the test equipment I regularly use at home and then some, sleeping on the sofa in Boss's office and building stuff and repairing radios and having a ball. Samoan weather is brutal, wind blows across the beaches if you are lucky, and it rains when no one wants it to! SO lets see want to drive to Virginia beach and pick something up and hold it for me? I know I still have an Apache there but I still LOVE you. My pickup truck is dead DEAD and I am going to drop it at Monroe Muffler and brake to let them repair it, if they can. I have been working on the 500KC group stuff got the transmitter, got the receiver coming from Cleveland, everything is set up for portable operation from the University, if it is heard then I will have to change the address/location info on the 500KC license. How the heck are you and I still have AIM and you are listed in there turn the thing on. Sgt Boo AKA Jim WB2FCN - Original Message - From: Rbethman [EMAIL PROTECTED] To: amradio amradio@mailman.qth.net Sent: Monday, December 18, 2006 5:18 PM Subject: [AMRadio] Transformer baking Recovery Folks, Most of us have power, mod, audio, and other transformers that have been due to storage requirements, exposed to humidity. The 90 Deg C temp converts to 194 Deg F. This would seem to be a starting point for a multiple hour bake session. My Electric stove/oven has a 200 Deg F setting. I plan to make some baking runs on xfmrs for periods between 2 to 4 hours. This SHOULD take care of simple humidity issues. Dealing with REAL MOISTURE issues is someplace I've been. The year was 1975. My team and I were installing a replacement 1500KW, 4160VAC, 230A 60 Hz synchronous generator. We were located on the Island of American Samoa. The military transport folks, for reason never determined, had left this in an unprotected wood shipping crate. This crate sat OUTSIDE for about weeks in the summer tropical environment AND rains. We acquired about 12 floodlights, sockets, wiring, and plugs. We removed the end bells and confirmed a Depot Rebuilt assembly that was indeed SOAKED. We baked it with the end bells OFF for two weeks in a water-proof shelter. Testing was performed with first a Megger, then followed by a Hi-Pot. We determined that our effort was successful. Several days later, we installed it, aligned it with the prime mover, and then, crossing our fingers, started the generator, flashed its field, and achieved full output voltage. We did a careful step loading until we reached full power of 1500KW 4160 3 Phase VAC at a power factor of 0.8. It was run for 72 hours in that condition. It performed flawlessly. To MY knowledge, this piece of equipment operated for at LEAST four years without failure. Baking works! WE just shouldn't have to go to THOSE extremes to safely recover OUR transformers. Unless we have managed to let them get WET. Bob - N0DGN -- Bob - NØDGN +--+ | \\//CraftyBob - WitchDoctor \\// | | (@ @) Bob Bethman - NØDGN(@ @) | +---oOOo-(_)-oOOo--oOOo-(_)-oOOo---+ | NØDGN AMRadio Manassas, VA|REAL Tube Radio and AM| +---+--+ | Manassas Radio - Home of Homemade Kielbasa Pirogi| +---+--+ | Bob Bethman\\\|/// The absence of a danger | | rbethman(at)comcast.net \\ ~ ~ // signal does *NOT* mean | | (/ @ @ /) that everything is OK | +-oOOo-(_)-oOOo+ | http://home.comcast.net/~rbethman| | 1 BC-61ØI w/BC-614I,1 T-213/GRC-26 w/BC614I,1 '51 Collins R-39ØA | | SP-6ØØ/NR Type 159, Heath DX-6Ø, Apache, Mohawk, SX-1Ø1, HT-32A | +---.oooO---Oooo.---.oooO---Oooo.--+ | () ()Opinions expressed are that() () | |\ ( ) /of my own and do not \ ( ) / | | \_ ) ( _/represent those of ANYONE else \_ ) ( _/| +--+ | Amateur Astronomer - Celestron Nexstar 8 Meade ETX-6Ø | | 38 Deg 46'48.62' N - 77 Deg 28'26.89 W | +--.oooO---Oooo
Re: [AMRadio] Transformer baking Recovery
Rbethman wrote: Folks, Most of us have power, mod, audio, and other transformers that have been due to storage requirements, exposed to humidity. John/WA5BXO had a modulation transformer, and reactor soaked in Spring Creek for 3 months, or thereabouts. The year was 1998, when they lost everything in the worst flooding of North Houston ever recorded. Those pieces of iron are still on the air, today. -- 73 __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Transformer baking Recovery
Did John, WA5BXO, bake the transformers? I have a nice BC 610 E that has been in the State of Kentucky until a couple of years ago ( not Gulf Coast humidity) and in my enclosed garqage in South Louisiana for about two years. I plan to fire it up soon and an wondering if I should apply heat with heat lamps or electric heaters and for how long? Any ideas? Thanks, and 73, John, K5PGW --- Geoff/W5OMR [EMAIL PROTECTED] wrote: Rbethman wrote: Folks, Most of us have power, mod, audio, and other transformers that have been due to storage requirements, exposed to humidity. John/WA5BXO had a modulation transformer, and reactor soaked in Spring Creek for 3 months, or thereabouts. The year was 1998, when they lost everything in the worst flooding of North Houston ever recorded. Those pieces of iron are still on the air, today. -- 73 __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Transformer baking Recovery
John King wrote: Did John, WA5BXO, bake the transformers? I have a nice BC 610 E that has been in the State of Kentucky until a couple of years ago ( not Gulf Coast humidity) and in my enclosed garqage in South Louisiana for about two years. I plan to fire it up soon and an wondering if I should apply heat with heat lamps or electric heaters and for how long? Any ideas? Thanks, and 73, John, K5PGW I don't know if he baked 'em, or ust let 'em sit outside on the driveway for a couple of days, in the typical South Texas Sun. __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
[AMRadio] Transformer Case Outline Pinouts
Hello - I am trying to find a pin connection diagram for the UTC special series S-17 transformer. I have looked at the on-line catalogs and they do not have the pinouts, only the specs. The one document on BAMA does not have the Special Series transformers. Thanks, Dave N7RK -- *** Dave N7RK Boatanchors Home Page: http://members.cox.net/n7rk Phoenix, Arizona *DXCC Honor Roll**WAZ#22 - 75 Meter SSB* ex-XE2/N7RK, N7RK/ZB2, VK2ERK, ZM0AJN, WB6NRK, WN6IWX Boatanchor and Antique Radio Collector __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Transformer Rewinding
Bob: That mite of been me, WZ1M, up here in Maine. Regards, Gary...WZ1M - Original Message - From: Bob Maser [EMAIL PROTECTED] To: AMRadio amradio@mailman.qth.net Sent: Tuesday, June 06, 2006 11:06 AM Subject: [AMRadio] Transformer Rewinding Some time back in 2005 I found a guy that rewound the power transformer for my HRO60. He did a great job and his price was reasonable. I have another transformer that needs to be rewound and I can't locate his name. Can anyone help me find this guy? I think he was somewhere in the East. Maybe in 3 land, not sure. Bob W6TR. __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.8.3/359 - Release Date: 6/8/2006
Re: [AMRadio] Transformer Rewinding
There is a full list of Transformer Rewinder Guys that you can consult at: http://www.af4k.com/Boatanchors_Directory/Repairs.htm AND at: http://www.af4k.com/mega/repairs.htm I hope it's helpful! Some time back in 2005 I found a guy that rewound the power transformer for my HRO60. He did a great job and his price was reasonable. I have another transformer that needs to be rewound and I can't locate his name. Can anyone help me find this guy? I think he was somewhere in the East. Maybe in 3 land, not sure. Bob W6TR. __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
[AMRadio] Transformer Rewinding
Some time back in 2005 I found a guy that rewound the power transformer for my HRO60. He did a great job and his price was reasonable. I have another transformer that needs to be rewound and I can't locate his name. Can anyone help me find this guy? I think he was somewhere in the East. Maybe in 3 land, not sure. Bob W6TR.
Re: [AMRadio] Transformer Rewinding
On 6/6/06, Bob Maser [EMAIL PROTECTED] wrote: Some time back in 2005 I found a guy that rewound the power transformer for my HRO60. He did a great job and his price was reasonable. Bob, was it Gary Brown WZ1M in Maine? http://tubes_tubes_tubes.tripod.com/tubestubestubes/ ~ Todd, KA1KAQ
Re: [AMRadio] Transformer catalogs
Here's a source: http://www.bunkerofdoom.com/xfm/index.html Pete, wa2cwa On Tue, 13 Dec 2005 17:39:46 -0800 Edward B Richards [EMAIL PROTECTED] writes: Hi all; I remember seeing where someone had posted transformer specifications somewhere on the web. I was not interested at the time so I did not save it (mistake). I now need to identify 3 transformers and a choke. All are about the size of a car battery and weigh about the same. Can someone point me in the right direction? they are; 1. Super Electronic Products Corporation type 466-T-1 2. Thordarson Electric Mfg, co. CAT transformer T-15P10 or T-15P19, 900 watts. 3. Electro Engineering Works. No numbers other than numbering the terminals; 123 on one row, 4567 on other row. 4. Above came with a matching choke by the same company no. 678-0625-00 rev F. I need something that will produce 3 kv @ 500 ma DC. Thank you and Merry Christmas. 73, Ed Richards, K6UUZ Simi Valley, California, 93065 Home of Air Force 1 Pavilion
Re: Re: [AMRadio] Transformer catalogs
Looks like 3. Electro Engineering Works 123, 4567 is a 866 filament xfmr and 678-0625-00 is a 10 Hy choke @ 1 amp, both from a Collins 20V3 1 Kw AM xmtr. 73, Larry K2LT 3. Electro Engineering Works. No numbers other than numbering the terminals; 123 on one row, 4567 on other row. 4. Above came with a matching choke by the same company no. 678-0625-00 rev F. I need something that will produce 3 kv @ 500 ma DC. Thank you and Merry Christmas. 73, Ed Richards, K6UUZ Simi Valley, California, 93065 Home of Air Force 1 Pavilion __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
Re: [AMRadio] Transformer catalogs
Thanks, Pete. That was it. Merry Christmas. On Wed, 14 Dec 2005 02:17:09 -0500 peter markavage [EMAIL PROTECTED] writes: Here's a source: http://www.bunkerofdoom.com/xfm/index.html Pete, wa2cwa
Re: Re: [AMRadio] Transformer catalogs
Plate V is 3100 and the choke is in the high side. Larry From: Edward B Richards [EMAIL PROTECTED] Date: 2005/12/14 Wed PM 04:02:15 WET To: amradio@mailman.qth.net Subject: Re: Re: [AMRadio] Transformer catalogs Thanks, Larry. That helps. I don't understand why the choke says VOLTAGE: 110-120 VOLTS. It is a high voltage choke isn't it? Thanks and Merry Christmas. 73, Ed Richards, K6UUZ Simi Valley, California, 93065 Home of Air Force 1 Pavilion On Wed, 14 Dec 2005 14:35:12 + [EMAIL PROTECTED] writes: Looks like 3. Electro Engineering Works 123, 4567 is a 866 filament xfmr and 678-0625-00 is a 10 Hy choke @ 1 amp, both from a Collins 20V3 1 Kw AM xmtr. 73, Larry K2LT __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb Larry Taft K2LT T and T Measurements drakerepair.com 800-687-9161
Re: Re: [AMRadio] Transformer catalogs
Thanks, again, Larry 73, Ed Richards, K6UUZ Simi Valley, California, 93065 Home of Air Force 1 Pavilion On Wed, 14 Dec 2005 16:50:23 + [EMAIL PROTECTED] writes: Plate V is 3100 and the choke is in the high side. From: Edward B Richards [EMAIL PROTECTED] Date: 2005/12/14 Wed PM 04:02:15 WET To: amradio@mailman.qth.net Subject: Re: Re: [AMRadio] Transformer catalogs Thanks, Larry. That helps. I don't understand why the choke says VOLTAGE: 110-120 VOLTS. It is a high voltage choke isn't it? Thanks and Merry Christmas. 73, Ed Richards, K6UUZ Simi Valley, California, 93065 Home of Air Force 1 Pavilion On Wed, 14 Dec 2005 14:35:12 + [EMAIL PROTECTED] writes: Looks like 3. Electro Engineering Works 123, 4567 is a 866 filament xfmr and 678-0625-00 is a 10 Hy choke @ 1 amp, both from a Collins 20V3 1 Kw AM xmtr. 73, Larry K2LT __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb Larry Taft K2LT T and T Measurements drakerepair.com 800-687-9161 __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
[AMRadio] Transformer catalogs
Hi all; I remember seeing where someone had posted transformer specifications somewhere on the web. I was not interested at the time so I did not save it (mistake). I now need to identify 3 transformers and a choke. All are about the size of a car battery and weigh about the same. Can someone point me in the right direction? they are; 1. Super Electronic Products Corporation type 466-T-1 2. Thordarson Electric Mfg, co. CAT transformer T-15P10 or T-15P19, 900 watts. 3. Electro Engineering Works. No numbers other than numbering the terminals; 123 on one row, 4567 on other row. 4. Above came with a matching choke by the same company no. 678-0625-00 rev F. I need something that will produce 3 kv @ 500 ma DC. Thank you and Merry Christmas. 73, Ed Richards, K6UUZ Simi Valley, California, 93065 Home of Air Force 1 Pavilion
[AMRadio] transformer
73 all, looking for a 350-0-350 @ 300-350mA transformer.Not interested if 6.3V 5.00V there are or not. Merry Christmas and the happiest 2005 to all ya ur families! Chris SV1DAF. From [EMAIL PROTECTED] Wed Dec 22 22:29:44 2004 Return-Path: [EMAIL PROTECTED] X-Original-To: amradio@mailman.qth.net Delivered-To: amradio@mailman.qth.net Received: from regulus.blazenet.net (regulus.blazenet.net [24.104.0.39]) by mailman.qth.net (Postfix) with ESMTP id D0843859C02 for amradio@mailman.qth.net; Wed, 22 Dec 2004 22:29:43 -0500 (EST) Received: from bell1 (ip81.7.blca.blazenet.net [24.104.7.81]) by regulus.blazenet.net (8.11.6/8.11.6) with SMTP id iBN3T8X17295 for amradio@mailman.qth.net; Wed, 22 Dec 2004 22:29:09 -0500 Message-ID: [EMAIL PROTECTED] From: Mark Bell [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net References: [EMAIL PROTECTED] Subject: Re: [AMRadio] AM Window on 15 Meters? Date: Wed, 22 Dec 2004 22:18:32 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-BeenThere: amradio@mailman.qth.net X-Mailman-Version: 2.1.4 Precedence: list Reply-To: Discussion of AM Radio amradio@mailman.qth.net List-Id: Discussion of AM Radio amradio.mailman.qth.net List-Unsubscribe: http://mailman.qth.net/mailman/listinfo/amradio, mailto:[EMAIL PROTECTED] List-Archive: http://mailman.qth.net/mailman/private/amradio List-Post: mailto:amradio@mailman.qth.net List-Help: mailto:[EMAIL PROTECTED] List-Subscribe: http://mailman.qth.net/mailman/listinfo/amradio, mailto:[EMAIL PROTECTED] X-List-Received-Date: Thu, 23 Dec 2004 03:29:44 - Awk!! There is no AM Window on 15 meters. You can use the entire phone band. Typically though, AM activity is around 21.420. As to why it isn't used much, I suspect it's because 10M has been good. As we head further into the sunspot doldrums, you'll probably see more activity on 15M. A lot of us that are 10M addicts monitor 29.0 whilst putzing in the shack. It would probably be a good idea to set a second receiver on 21.420! I'm not sure what the AM calling frequency is for 15 though, it might not be 21.420. Check the band plan. 73 Mark K3MSB . - Original Message - From: Mike Duke, K5XU [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Wednesday, December 22, 2004 5:48 PM Subject: [AMRadio] AM Window on 15 Meters? As 10 meters began its decline a few years ago, I would often ask AM operators if they ever used 15 meters. With very few exceptions, the answer would usually go something like: No, because I never hear anyone else down there. There was AM activity for a brief time around 21.400, and on 21.430. But, in casual tuning on the weekends, I have heard less than 5 AM stations on 15 meters within the past year. I say all that to ask just where is the AM window on 15 meters? And, why don't more of us operate there? Unless there's a contest, 15 meters is usually not crowded. Those of us who run rice boxes or similar power can usually hold our own there once a contact is established. Mike Duke, K5XU American Council of Blind Radio Amateurs __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
[AMRadio] Transformer needed
I'm in need of a combined plate/filament tranny 750 or 800 vct 6.3V ct and 5v filament windings anyone have one of these beasts they will part with? thanks and Merry Christmas Ronnie The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it!
Re: [AMRadio] Transformer needed
I spewed my drink all over the monitor when on Tuesday 23 December 2003 12:48, w5sum said (and I am -not- making this up!):: I'm in need of a combined plate/filament tranny 750 or 800 vct 6.3V ct and 5v filament windings anyone have one of these beasts they will part with? thanks and Merry Christmas I've got one, Ronnie. I need a road trip. where do ya wanna meet? -- 12:53pm up 3 days 0:31, 8 users, load average: 0.31, 0.22, 0.13
Re: [AMRadio] Transformer needed
LOL well damn man, I hate that I made you shower your monitor but at least it wasn't your keyboard it aint worth the drive dude.. let me send you some cash for shipping and how much do you want for it? Hope you and yours have a very Merry Christmas. Going to be quiet at my QTH with no chillens around 73's R -- Original Message --- From: Geoff Edmonson [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Tue, 23 Dec 2003 12:53:56 -0600 Subject: Re: [AMRadio] Transformer needed I spewed my drink all over the monitor when on Tuesday 23 December 2003 12:48, w5sum said (and I am -not- making this up!):: I'm in need of a combined plate/filament tranny 750 or 800 vct 6.3V ct and 5v filament windings anyone have one of these beasts they will part with? thanks and Merry Christmas I've got one, Ronnie. I need a road trip. where do ya wanna meet? -- 12:53pm up 3 days 0:31, 8 users, load average: 0.31, 0.22, 0.13 ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio --- End of Original Message ---
Re: [AMRadio] Transformer needed
I spewed my drink all over the monitor when on Tuesday 23 December 2003 13:33, w5sum said (and I am -not- making this up!):: how about 800vCT at 1Amp? oh.. what kind of current does it have for the plate voltage? I need about 120 mills (realize, the spewing comment at the top is just a feature of the new mail program ;-) -- 2:11pm up 3 days 1:49, 7 users, load average: 0.10, 0.13, 0.09
Re: [AMRadio] Transformer needed
Hey Ronnie, Are you lookin' fer new or used and how much plate current? Terry N3GTE --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html The reason this message is shown is because the post was in HTML or had an attachment. Attachments are not allowed. To learn how to post in Plain-Text go to: http://www.expita.com/nomime.html ---
Re: [AMRadio] Transformer needed
hi Terry new or used is good 120-150 ma of current. I can't believe that I left that part out LOL Merry Christmas Ronnie On Tue, 23 Dec 2003 17:05:20 EST, Tbs50A wrote Hey Ronnie, Are you lookin' fer new or used and how much plate current? Terry N3GTE --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html The reason this message is shown is because the post was in HTML or had an attachment. Attachments are not allowed. To learn how to post in Plain-Text go to: http://www.expita.com/nomime.html --- ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it!
