Re: [AMRadio] 4-65's
Geoff: I mite have three of these 4-65's. Will check and let you know. Regards, Gary...WZ1M - Original Message - From: Geoff/W5OMR [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Wednesday, April 04, 2007 8:34 PM Subject: [AMRadio] 4-65's Does anyone have any 4-65's? I think that'd be a neat little ~100w rig to build up.. a single 4-65 tetrode, modulated by a pair. Of course, I'll need a screen winding on the modulation transformer to modulate the screen of the final, a bit... h... I think I have an ol' buzzard RCA 1:1 5000 ohm, 200mA mod xfmr around here, with a screen winding on it, I could use... 6.3v @ 3.5a? Got those transformers, too. Oh, I guess I'll need sockets... got a plate choke, can make some plate caps... got plenty of air variable caps and a variable coil for a PI-L network... hmmm, yeah - sounds like it'll work great! Ok.. who's got parts? -- 73 = Best Regards, -Geoff/W5OMR __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.26/746 - Release Date: 4/4/2007 1:09 PM __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] THE VIKING II AND FRIED HAM
And, if you do cook that low voltage tranny, shoot me an email. I have two new rewinds setting on the shelf, ready to bolt in. Regards, Gary...WZ1M - Original Message - From: Gary Schafer [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net; [EMAIL PROTECTED] Sent: Wednesday, March 28, 2007 5:48 PM Subject: RE: [AMRadio] THE VIKING II AND FRIED HAM It is a good idea to use a separate fuse for the high voltage and the low voltage. With one fuse only you can have a short on the low voltage and it will cook the low voltage transformer and never blow the fuse. BTDT. 73 Gary K4FMX -Original Message- From: [EMAIL PROTECTED] [mailto:amradio- [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, March 28, 2007 5:52 PM To: [EMAIL PROTECTED] Cc: amradio@mailman.qth.net Subject: Re: [AMRadio] THE VIKING II AND FRIED HAM The internal fuse in the Viking II is in line with the low and high voltage transformer primaries and protects both. As stated before, there is no prorection for the antenna relay socket unless the original fused line plug is used. This is not a good idea and it should be replaced as you said, with internal fuses. If wired correctly, only one additional fuse would be needed to protect both sides of the line and the lead to the relay socket should be moved ahead of the fuse to protect that outlet. 73, John, W4AWM I replaced the single internal fuseholder with a double one and used the second holder for a single fuse in the hot side of the line only and replaced the line cord with a 3 conductor and 3 prong prang. ** See what's free at http://www.aol.com. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.20/737 - Release Date: 3/28/2007 4:23 PM __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Tube Data
371B, Transmitting vacuum rectifier. Filament, 5 volt @ 10.3 amps. 25 KV @ 250 MA. AKA, 221B or the 2K71. Used in a BC-1037A Regards, Gary...WZ1M - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: 'Discussion of AM Radio in the Amateur Service' amradio@mailman.qth.net Sent: Sunday, March 11, 2007 8:43 PM Subject: RE: [AMRadio] Tube Data Thanks John. Unfortunately, that info is on the 371A. I need the B. Rick -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Coleman ARS WA5BXO Sent: Sunday, March 11, 2007 8:37 PM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] Tube Data Try this http://amfone.net/Amforum/index.php?topic=4837.0 John Coleman, WA5BXO __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.8/718 - Release Date: 3/11/2007 9:27 AM __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Transformers Revised
Rick: I know you would like to keep it original but even with today's transformers at 120 volts, primary, the secondary still remains the same for filament voltage. Another thing I don't understand at this point, why monitor filament primary voltage? I would think to monitor the true filament voltage is more critical. Regards, Gary...WZ1M - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Monday, February 19, 2007 10:38 AM Subject: Re: [AMRadio] Transformers Revised Hi Gary, As usual, my description was lacking. The beast has five filament transformers with all primaries wired in parallel. So, to adjust the filament voltage you simply set the rheostat to 100 vac as indicated on the filament voltage meter. So, GE has created a sure fire way (or so they thought) of selling only their transformers for replacement. Proprietary to the max! If I can find a milti tap transformer with a 100 vac tap and 5 vac @ 2.5 amp secondary, as Geoff suggested, I'll try to fit it in. If not, you are likely to get some business. I think the plate tranny is going to be equally hard to find. It's 900-0-900 secondary and 115 vac primary. It can't be potted due to the mounting and there is very little room in the area for anything much bigger than the original. I'm going to send you the part numbers of both along with a better description and see if you can do your thing on them in case I strike out on a replacement. Thanks, Rick/K5IZ gkb wrote: Kinda scratching my head here, if the primary voltage is passing thru a rheostat, why the need for 100 volt primary trannys? Regards, Gary...WZ1M __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.441 / Virus Database: 268.18.2/692 - Release Date: 2/18/2007 4:35 PM __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] 100 V filament transformer primary
If a variac is used at 120 volts, you can get 140 volts out of it, guess it depends on the variac connections. So, that kinda shoots that theory down. Regards, Gary...WZ1M - Original Message - From: John Lyles [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Tuesday, February 20, 2007 2:30 PM Subject: [AMRadio] 100 V filament transformer primary The reason that manufacturers install 100 V primary transformers, then add a rheostat in front of it, is to allow some lattitude to adjust a filament +/- around the nominal value. When the tube is old and emission starved, the filament primary can be jacked up a few % this way, and the tube continues to play until the next downtime. If a 120 VAC primary were used, there would be NO headroom to boost the voltage higher, only lower. Makes sense. Metering the filament via the primary AC power after the rheostat, is a bit cheap, but in this case (GE) it gave one meter which would globally be responsive to the filament setting. Its up to the engineer to correlate the reading from that AC meter to the individual socket voltages. Don't forget to use either a true RMS meter or iron vane movement when setting filaments on tubes to the correct voltage. 73 John K5PRO __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.441 / Virus Database: 268.18.3/693 - Release Date: 2/19/2007 5:01 PM __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Insulation Resistance
I am kinda lost on this Rick. A megger measures resistance from winding to winding or winding to ground. A megger is pretty much useless for measuring winding resistance. If you do get a megger, be careful. Some are only good for 500 volts. That's not enough if your doing HV trannys and chokes. Yes, I would recommend a HY-POT tester that's good for 5KV. A rule of thumb is to Hy-Pot at twice the rated voltage plus 1000. There are also test equipment out there that measure resistance while using a Hy-Pot. This test is called a P.I.E test( Polarization Index Test ). It measures the insulation resistance at certain time intervals and you calculate if the insulation is good, fair or bad. I do this when rewinding transformers. Regards, Gary...WZ1M - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: AMRadio@mailman.qth.net Sent: Tuesday, February 13, 2007 2:11 PM Subject: [AMRadio] Insulation Resistance List: A buddy pointed out a fact I had not considered. When I get a megger I will need to know what the resistance or approximate resistance of the wire/insulation of the transformer or choke should be. If not, I won't know any more than I do. Is there a rule of thumb that can be applied here? Thanks for any and all advice. Rick/K5IZ __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.411 / Virus Database: 268.17.37/682 - Release Date: 2/12/2007 __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Insulation Resistance
Rick: I would accept 10 megs from winding to winding or winding to ground. Anything less is indicating moisture or insulation breakdown. Regards, Gary...WZ1M - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Tuesday, February 13, 2007 3:37 PM Subject: Re: [AMRadio] Insulation Resistance Well Gary, I'm pretty good at confusing people and myself. I guess I worded my question wrong which is pretty common for me. I am curious as to what the resistance should be between the windings and from the winding to ground. My old brain doesn't always supply my hands with the correct words. Thanks, Rick gkb wrote: I am kinda lost on this Rick. A megger measures resistance from winding to winding or winding to ground. A megger is pretty much useless for measuring winding resistance... __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.411 / Virus Database: 268.17.38/684 - Release Date: 2/13/2007 __ 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 To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] WTB Tubes
Not only has tubes soared in price but transformers have also gone wild in there prices. Try to buy a 100 watt mod tranny for $15.00, now days. Those BIG voltage plate trannys, wow, unreal. Regards, Gary...WZ1M - Original Message - From: [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Monday, January 01, 2007 1:00 AM Subject: Re: [AMRadio] WTB Tubes The prices folks are asking for tubes these days are the result, in the most part, of dermands by audiofools who have driven the prices up. This is not to mention the prices sellers are getting on auction sites and just plain hoarding. The best way to deal with this is not to buy from sellers asking for the sky. Careful prowling through hamfests, classifierd ads in magazines and on the internet will yield more reasonable prices. Late this summer, I found brand new, original box tubes like 6L6s, 12AT7, 12AU7, 12AX7, 12BY7, 5Y3, 5Rr and many others for from $2.00 to $3.00 each. There were NIB 6146s at Dayton for $12.00 each. There are reasonable prices out there. Let your fingers do the walking. and let these dealers wilt on the vine. Happy New Year and 73, John, W4AWM __ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.409 / Virus Database: 268.16.1/611 - Release Date: 12/31/2006 __ 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] Tubes
Rick: I mite have a couple of these kicking around. Will check and get back to you. Regards, Gary...WZ1M - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: AMRadio@mailman.qth.net Sent: Friday, November 03, 2006 6:06 PM Subject: [AMRadio] Tubes Does anyone have a good (I'd like to say cheap, but I know they're not) source for 1614 tubes? I need a couple. Thanks, Rick/K5IZ __ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.409 / Virus Database: 268.13.27/517 - Release Date: 11/3/2006 __ 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] 220 volt AC Power Question
My clothes dryer has four prongs. Regards, Gary...WZ1M - Original Message - From: Darrell, WA5VGO [EMAIL PROTECTED] To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Sent: Monday, October 30, 2006 8:40 PM Subject: Re: [AMRadio] 220 volt AC Power Question This does not meet the code. A ground wire can never be used to carry load. Also, your ground wire is probably bare. A neutral conductor must be insulated. Darrell, WA5VGO At 07:09 PM 10/30/2006 -0600, you wrote: Hi all, I am building an amplifier that has a combination of 220 volt and 120 volt transformers. The HV plate supply is 220V, and the rest is 120V. I will be keying the plate supply. My 220V outlet has phase, phase, and ground. There is NO neutral. The outlet is not a GFCI outlet so ground current will work, BUT. The BUT here is whether this is legal with the National Electric Code? Before you say NO, consider the electric clothes dryer. These all run off 220V, and have 3 prong power cords. I have heard that in some dryers there are 120 volt loads (lights, and timer) as well as 220V (heater and motor). If this is true, then my approach must be OK so long as my power switch uses a DPST switch and (double fuses)to insure everything is off when it is in the OFF position. Comments please... BTW, I do have a 240/120 autotransformer of suitable size (VA rating), but space does not permit it's use. Jim JKO -- No virus found in this outgoing message. Checked by AVG Free Edition. __ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.409 / Virus Database: 268.13.18/506 - Release Date: 10/30/2006 __ 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] Xfmr
Looks like a Stancor number and the A meaning, audio. My catalogs don't list this number but then again, I don't have all there catalogs. Regards, Gary...WZ1M - Original Message - From: Rick Brashear [EMAIL PROTECTED] To: AMRadio@mailman.qth.net Sent: Saturday, September 30, 2006 6:12 PM Subject: [AMRadio] Xfmr Can someone tell me what an A 2920 transformer is or who manufactured it? It is supposed to be an audio (inner stage) transformer in a modulator. Thanks, Rick/K5IZ __ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.407 / Virus Database: 268.12.10/459 - Release Date: 9/29/2006 __ 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] Shorting stick
Broom sticks make good bleeder resistors. Regards, Gary...WZ1M - Original Message - From: Neal Newman [EMAIL PROTECTED] To: Mike Dorworth, K4XM [EMAIL PROTECTED]; Discussion of AM Radio amradio@mailman.qth.net Sent: Friday, June 02, 2006 6:04 PM Subject: Re: [AMRadio] Shorting stick Flames coming...ZZZAP. Broom Handle? wooden broom handle? Thats living on the Edge thats what you use to play russian Roullette . Using that wooden stick and you just may see Jesus I would never use a wooden Broom handle with a nail in it as described below. wood retains moisture and will bite you at 4000 volts.or less. Make sure its a non conductive Plastic or better yet Fiberglass pole/dowel... Mike Dorworth, K4XM wrote: Discharging is not the idea. If all is well it will NEVER discharge anything. A nail with a good hooked ground strap in a broom handle is perfect. This is to keep you from making a sudden trip to the hereafter only. If it should ever actually be called on to work you will normally holler out the name of the Christian Savior in a loud voice! This is why folks in the business call them Jesus Sticks! - Original Message - From: [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Friday, June 02, 2006 9:57 AM Subject: [AMRadio] Shorting stick __ 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: 268.8.1/354 - Release Date: 6/1/2006
Re: [AMRadio] Shorting stick
OK, just solved a myth about wet broom sticks being of high resistance. I put a highpot to a 3 foot length of a broomstick, at 2200 volts I got the alarm. I would not use a broom stick, even covered in black tape. Use a high voltage glove if you fool with high voltages, weather it be ground or not. Regards, Gary...WZ1M - Original Message - From: Mike Dorworth, K4XM [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Saturday, June 03, 2006 3:15 PM Subject: Re: [AMRadio] Shorting stick My buddies. Never has so simple a subject gotten so much attention. I see extreme danger in using a resistor probe. Period.I have boxes of wirewounds here that are brand new. Periodically I test them and find several wide open. Old age I guess since they show no damage, Some still in paper, some still in boxes. The broom handle suits me fine after 53 years as a ham. I was taught at Ft. Gordon to work with one hand in 1956, the other behind my back. After 50 years, I still work with one hand behind my back even with 12 volt stuff. Sure, a broom handle might have a little resistance. A Braid firmly bolted to ground at all time, no clips please, and attached to a bolt, nail or whatever firmly place in a broom handle is fine with me, remember the braid is GROUNDED and about a few milli ohms at most. The wood, even soaked in water is in the thousands of ohms(megohms really) in parallel to ground. The insulation of the handle only comes into play if YOU are grounded and the broom handle point is not. You will feel enough to get away. The idea is to stay alive and as a LAST chance. Use you best judgement as to unplugging from the wall, watching meters etc. Wrap some electrical tape around YOUR broomstick, it is 5 kV per thickness for Scotch 33 I think. If it does have to work, hopefully never, the braid does the work. At work we used personal locks, called lock out, tag out, and used shorting straps to keep some one else from re-energizing a circuit while we were working. This is NOT what I thought we were talking about here. I was talking about the last line of defense for something that we hope never works. For this a grounded wire with no insulation would be better that nothing! For small stuff, 600 volts or less I have been known to use a jumper clip grounded to chassis and moved about, sometimes a surprise results, not a shock! Do it your way..just do something and do not trust a meter or bleeder. I read once of a simple 6 volt filament transformer killing a ham, It had a primary to secondary short and the frame was not grounded, contacting the 6 volt lead and ground killed him, no fuse blow but line voltage was present. - Original Message - From: Neal Newman [EMAIL PROTECTED] To: Mike Dorworth, K4XM [EMAIL PROTECTED]; Discussion of AM Radio amradio@mailman.qth.net Sent: Friday, June 02, 2006 6:04 PM Subject: Re: [AMRadio] Shorting stick Flames coming...ZZZAP. Broom Handle? wooden broom handle? Thats living on the Edge thats what you use to play russian Roullette . Using that wooden stick and you just may see Jesus I would never use a wooden Broom handle with a nail in it as described below. wood retains moisture and will bite you at 4000 volts.or less. Make sure its a non conductive Plastic or better yet Fiberglass pole/dowel... Mike Dorworth, K4XM wrote: Discharging is not the idea. If all is well it will NEVER discharge anything. A nail with a good hooked ground strap in a broom handle is perfect. This is to keep you from making a sudden trip to the hereafter only. If it should ever actually be called on to work you will normally holler out the name of the Christian Savior in a loud voice! This is why folks in the business call them Jesus Sticks! __ 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: 268.8.1/355 - Release Date: 6/2/2006
