RE: [AMRadio] Belton April 13/14
John, are you going to this one? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Peters Sent: Tuesday, April 10, 2007 3:33 PM To: New_Old Stock; AM Subject: [AMRadio] Belton April 13/14 Hi All...Belton week is here. Most of us are going down Friday AM..AM dinner get together at 1900 At the OXBOW restaurant. Have reserved twenty seats. Also reserved lots of racks of ribs... Show up about 1845 for fun and food. I have three tables reserved at Belton so if you need room feel free to bring your stuff... Look forward to seeing all of you there... Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.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. -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM __ 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] Belton April 13/14
John, you sent this one back? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of George Sent: Wednesday, April 11, 2007 10:02 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] Belton April 13/14 John, are you going to this one? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Peters Sent: Tuesday, April 10, 2007 3:33 PM To: New_Old Stock; AM Subject: [AMRadio] Belton April 13/14 Hi All...Belton week is here. Most of us are going down Friday AM..AM dinner get together at 1900 At the OXBOW restaurant. Have reserved twenty seats. Also reserved lots of racks of ribs... Show up about 1845 for fun and food. I have three tables reserved at Belton so if you need room feel free to bring your stuff... Look forward to seeing all of you there... Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.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. -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM __ 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. -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM __ 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] Belton April 13/14
George If you asking to me, WA5BXO/John, then no. I will not be going to Belton. Sorry, I have Boy Scout stuff to deal with but thanks for asking. John Coleman WA5BXO __ 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: ***SPAM*** RE: [AMRadio] Belton April 13/14
John, I wasn't asking you to go but I did return it to you by mistake. Your name being John also was a coincidence, it seems as though everything was working against me as I was asking John WR5L if he was going. Sorry for the mix-up. George KC5WBV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John E. Coleman (ARS WA5BXO) Sent: Wednesday, April 11, 2007 10:04 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: ***SPAM*** RE: [AMRadio] Belton April 13/14 George If you asking to me, WA5BXO/John, then no. I will not be going to Belton. Sorry, I have Boy Scout stuff to deal with but thanks for asking. John Coleman WA5BXO __ 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. -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM __ 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: ***SPAM*** RE: [AMRadio] Belton April 13/14
No Problem George, hope you all have a great time. John, WA5BXO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of George Sent: Wednesday, April 11, 2007 10:17 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: ***SPAM*** RE: [AMRadio] Belton April 13/14 John, I wasn't asking you to go but I did return it to you by mistake. Your name being John also was a coincidence, it seems as though everything was working against me as I was asking John WR5L if he was going. Sorry for the mix-up. George KC5WBV __ 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] wireless
Confession time? I had a Laf-a-Lot (Lafayette) 2 tube wireless broadcaster, hot chassis and all, which I connected to a wire and made it out to one block away. I had a junky turntable, a really old Mike, and a couple of toggle switches as my mixer. Only had a few 45 rpm records back then, so my programming was rather limited. Everything was fine until I connected the input jack of the transmitter to the speaker jack of my Knight Kit Star Roamer, trying to rebroadcast shortwave over medium wave. The sparks flew as i grounded the chassis of the transmitter, not having correctly polarized outlets in my parents 100 year old house. Next I tried ham radio, that seemed to be the ticket 73 John K5PRO > > Coverage, coverage, coverage! What memories you had me remember. > > Anyone else do the "Cutting Edge" in the AM bands? > > > > 73 Robert W4RL __ 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] Parasitic Suppressors (or lack thereof) in the Olden Days
Olden Days being pre-WWII, that is. I've noticed most (if not all) if the PP-triode RF PAs of that period don't show the use of any parasitic suppressors in the grid or plate leads. Also a deck I have (exact vintage unknown) using PP triodes doesn't include them. How did they get away with this? I've never put power to the above-mentioned deck, but have another one where I tried to follow the same practice (I just used copper strap for the plate leads) and I appear to have an intermittent parasitic, so will be incorporating some suppressors in the plate leads. -Larry/NE1S __ 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] wireless
CONFESSION TIME I LOVE IT John...When I was 16 I was a Ham Radio Instructor at a Boys Camp in Maine. The owner wanted to make a Radio Station and I used the same Lafayette transmitter as you did except I had it on a 175 foot longwire. It covered the whole camp no problem...Had two turntables a Mike and a sorta mixer. Everyday from 11AM till 2 PM WZAK was on the air. We had a visit from a CE from a local Radio station that we were making it 10 miles away and he came to the camp to find out who did this. Man I thought he was going to turn me in to the FCC but he just warned me to take the big antenna off and keep it in the camp. WZAK was on the air for 5 years that I know of. I thought for sure I would loose my Ham Ticket... Bob W1PE By the way That CE gave us an old Western Electric Console to use -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Lyles Sent: Wednesday, April 11, 2007 12:32 PM To: amradio@mailman.qth.net Subject: [AMRadio] wireless Confession time? I had a Laf-a-Lot (Lafayette) 2 tube wireless broadcaster, hot chassis and all, which I connected to a wire and made it out to one block away. I had a junky turntable, a really old Mike, and a couple of toggle switches as my mixer. Only had a few 45 rpm records back then, so my programming was rather limited. Everything was fine until I connected the input jack of the transmitter to the speaker jack of my Knight Kit Star Roamer, trying to rebroadcast shortwave over medium wave. The sparks flew as i grounded the chassis of the transmitter, not having correctly polarized outlets in my parents 100 year old house. Next I tried ham radio, that seemed to be the ticket 73 John K5PRO > > Coverage, coverage, coverage! What memories you had me remember. > > Anyone else do the "Cutting Edge" in the AM bands? > > > > 73 Robert W4RL __ 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.
Re: [AMRadio] wireless
We sold lots of those wireless broadcaster's over the years. Lots of strange stories when some were returned for blowing house fuses, tripping circuit breakers, some nasty jolts, etc. Pete, wa2cwa On Wed, 11 Apr 2007 11:31:43 -0600 "John Lyles" <[EMAIL PROTECTED]> writes: > Confession time? > > I had a Laf-a-Lot (Lafayette) 2 tube wireless broadcaster, hot > chassis and all, which I connected to a wire and made it out to one > block away. I had a junky turntable, a really old Mike, and a couple > of toggle switches as my mixer. Only had a few 45 rpm records back > then, so my programming was rather limited. Everything was fine > until I connected the input jack of the transmitter to the speaker > jack of my Knight Kit Star Roamer, trying to rebroadcast shortwave > over medium wave. The sparks flew as i grounded the chassis of the > transmitter, not having correctly polarized outlets in my parents > 100 year old house. > > Next I tried ham radio, that seemed to be the ticket > 73 > John > K5PRO > > > > > Coverage, coverage, coverage! What memories you had me > remember. > > > Anyone else do the "Cutting Edge" in the AM bands? > > > > > > 73 Robert W4RL __ 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] wireless
I had a two tube kit, 6aq5 output and a 12ax7 speech amp in screen modulation I suppose, it was really low parts count. Got out good with a 100 foot wire though, blocks! Used to play the cassette deck of my favorite tunes over it and ride around with a transistor radio. When the girls next door had a radio station blaring, I would zero beat and put opera on... Brett N2DTS > Confession time? > > I had a Laf-a-Lot (Lafayette) 2 tube wireless broadcaster, > hot chassis and all, which I connected to a wire and made it > out to one block away. I had a junky turntable, a really old > Mike, and a couple of toggle switches as my mixer. Only had a > few 45 rpm records back then, so my programming was rather > limited. Everything was fine until I connected the input jack > of the transmitter to the speaker jack of my Knight Kit Star > Roamer, trying to rebroadcast shortwave over medium wave. The > sparks flew as i grounded the chassis of the transmitter, not > having correctly polarized outlets in my parents 100 year old house. > > Next I tried ham radio, that seemed to be the ticket > 73 > John > K5PRO > > > > > Coverage, coverage, coverage! What memories you had me remember. > > > Anyone else do the "Cutting Edge" in the AM bands? > > > > > > 73 Robert W4RL > > __ > 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.
[AMRadio] Parasitic suppressors
Think the obvious reason for lack of these devices pre-WW II is there was nothing important on the VHF range to interfere with. Charlie in NC It's here! Your new message! Get new email alerts with the free Yahoo! Toolbar. http://tools.search.yahoo.com/toolbar/features/mail/ __ 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] antenna tuners...
My heathkit antenna tuner has worn out I think, I built it 20 years ago or more, and I think its shot. All the silver plating has worn off the roller bar, which sometimes results in an open which blows the diodes out in the swr bridge. I took it apart and cleaned things up, but I think its time for a new tuner. I would also like to be able to bypass the tuner without moving coax, so the rigs with built in tuners can do their automatic thing. For unbalanced antenna's, what is available that can handle say 3000 watts pep? Some headroom is a good thing, no? I know better then to buy anything MFJ... Anything out there that holds up to AM? Brett N2DTS __ 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] antenna tuners...
Take a look at Palstar. http://www.palstar.com Then take a look at your bank account. :-) Best Regards, Stevan A. White, W5SAW SW Commercial Electronics 928 South Crockett Street Amarillo, Texas 79102 Phone 806-681-7228 [EMAIL PROTECTED] "You can tell more about a person by what he says about others than you can by what others say about him." -- Leo Aikman, Writer and Newspaper Editor Brett gazdzinski wrote: My heathkit antenna tuner has worn out I think, I built it 20 years ago or more, and I think its shot. All the silver plating has worn off the roller bar, which sometimes results in an open which blows the diodes out in the swr bridge. I took it apart and cleaned things up, but I think its time for a new tuner. I would also like to be able to bypass the tuner without moving coax, so the rigs with built in tuners can do their automatic thing. For unbalanced antenna's, what is available that can handle say 3000 watts pep? Some headroom is a good thing, no? I know better then to buy anything MFJ... Anything out there that holds up to AM? Brett N2DTS __ 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.
RE: [AMRadio] antenna tuners...
Yes, well... At those prices, I suppose one could build a nice tuner from parts. $1195.00 plus shipping for the 3500, I think the most expensive part would be a big edge wound roller inductor. I wonder if a tapped coil (copper tubing) would be good enough, I have seen some units that have a band switch for the inductor. I think you would have less problems with a big copper coil and a massive switch, and my heathkit tuner seems to want the same roller inductor setting (roughly) no matter what antenna, 121 on 80, 68 on 40 and it does not seem to change much from that. Or maybe I should just get a Johnson KW matchbox You can do balanced or unbalanced with them, right? Brett N2DTS > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Stevan A. White > Sent: Wednesday, April 11, 2007 3:10 PM > To: Discussion of AM Radio in the Amateur Service > Subject: Re: [AMRadio] antenna tuners... > > Take a look at Palstar. http://www.palstar.com Then take a look at > your bank account. :-) > > Best Regards, > Stevan A. White, W5SAW > SW Commercial Electronics > 928 South Crockett Street > Amarillo, Texas 79102 > Phone 806-681-7228 > [EMAIL PROTECTED] > > "You can tell more about a person by what he says about > others than you > can by what others say about him." -- Leo Aikman, Writer and > Newspaper > Editor > > > > Brett gazdzinski wrote: > > My heathkit antenna tuner has worn out I think, > > I built it 20 years ago or more, and I think its shot. > > > > All the silver plating has worn off the roller bar, which > > sometimes results in an open which blows > > the diodes out in the swr bridge. > > > > I took it apart and cleaned things up, but I think > > its time for a new tuner. > > I would also like to be able to bypass the tuner without > > moving coax, so the rigs with built in tuners can > > do their automatic thing. > > > > > > For unbalanced antenna's, what is available that can handle say > > 3000 watts pep? > > > > Some headroom is a good thing, no? > > > > I know better then to buy anything MFJ... > > > > Anything out there that holds up to AM? > > > > Brett > > N2DTS > > > > > > __ > > 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. > __ 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] antenna tuners...
Nye Viking MBV-A comes to mind as a good, sturdy tuner that will handle a good deal of power without complaint. I've had such good luck with my HB link-coupled tuner that I have not used my MBV-A for a couple of years, but for coax feed I certainly would use it. I've seen these tuners for sale several times recently for a good deal less money than some other tuners go for. 73, Barrie, W7ALW __ 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] Volumax 4300
Anyone got the rear apron pinout??? Do not have a manual...Thanks... Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.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.
RE: [AMRadio] Volumax 4300
Hey, Got a 58.3K$ spice order today from The Fresh Market. Shippable next week. Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.W9DVM.com 727-944-3226 800-395-7795 pin 02 FAX 727-937-8834 NASFT # 30210 W9DVM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Peters Sent: Wednesday, April 11, 2007 4:53 PM To: AM Subject: [AMRadio] Volumax 4300 Anyone got the rear apron pinout??? Do not have a manual...Thanks... Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.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.
Re: [AMRadio] antenna tuners...
Brett... How about an EF Johnson Matchbox? Not a bad tuner at all. Functional and versatile. Vitually plug-n-play. Better still, find a c.1950's Handbook or W6SAI's book(s) and design one. Troll ebay using the "ham radio" search and "parts" as your subject. A good RF switch wil handle the bypass requirement. Choose a "T" or "Pi" design that fits ur needs and cobble it together. I'd predict you'll have a great tuner. I happen to be watching a local ham buddie putting one together that will easily handle 5kw. Vacuum variable caps and a nice variable inductor. He plans on tuning from 2-30mc with it with no more than 1kw. Plenty of headroom. 73 de W4MIL Chuck -Original Message- From: [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Wed, 11 Apr 2007 2:42 PM Subject: RE: [AMRadio] antenna tuners... My heathkit antenna tuner has worn out I think, I built it 20 years ago or more, and I think its shot. All the silver plating has worn off the roller bar, which sometimes results in an open which blows the diodes out in the swr bridge. I took it apart and cleaned things up, but I think its time for a new tuner. I would also like to be able to bypass the tuner without moving coax, so the rigs with built in tuners can do their automatic thing. For unbalanced antenna's, what is available that can handle say 3000 watts pep? Some headroom is a good thing, no? I know better then to buy anything MFJ... Anything out there that holds up to AM? Brett N2DTS __ 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. AOL now offers free email to everyone. Find out more about what's free from AOL at 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.
Re: [AMRadio] Volumax 4300
W9DVM said: "Got a 58.3K$ spice order today from The Fresh Market." as part of the 'Discussion of AM Radio in the Amateur Service' I feel like a novice trying to understand this stuff. 73, Ken W2DTC __ 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] Volumax 4300
On Wed, 11 Apr 2007, kenw2dtc wrote: W9DVM said: "Got a 58.3K$ spice order today from The Fresh Market." as part of the 'Discussion of AM Radio in the Amateur Service' I feel like a novice trying to understand this stuff. That's what you get for reading mail not meant for The List... shame, shame!! ;} Cheers John KB6S __ 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] EV-664
Hi Guys...I have an EV-664 that has a great element and connector with cable but the mike itself is rough..This would be a great replacement with a mike that has a bad element...Yours for $50.00... Price the connectors and elements are hard to find...Any takers Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.com __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Source of very nice inductor and variometer for ATN
A classic balanced line antenna tuning network can be built from the output components of a Raytheon RA1000 1 kW transmitter. It was one of the few that used push pull 833As in the RF, and had a symmetric tank with a huge inductor having a small motorized variometer (link coil) in the center for the antenna connection, and a split variable capacitor. The inductor was for AM band, so it has enough L to work down to 160 as well. Keep an eye open for RA1000s getting dumped, not too many left. 73 John K5PRO __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Volumax 4300
Yeah! Mind yer own bizness! Sheesh! ;-) Ed, VA3ES -- John, KB6S wrote: That's what you get for reading mail not meant for The List... shame, shame!! On Wed, 11 Apr 2007, kenw2dtc wrote: > W9DVM said: "Got a 58.3K$ spice order today from The Fresh Market." as part > of the 'Discussion of AM Radio in the Amateur Service' > > I feel like a novice trying to understand this stuff. __ 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] Source of very nice inductor and variometer for ATN
What a horrible thing to do to a RA1000. :-( Better to put up a tuned antenna, and restore the RA1000 to service. :-) 73 de Bill, AB6MT [EMAIL PROTECTED] - Original Message - From: "John Lyles" <[EMAIL PROTECTED]> To: Sent: Wednesday, April 11, 2007 4:32 PM Subject: [AMRadio] Source of very nice inductor and variometer for ATN > A classic balanced line antenna tuning network can be built from the output components of a Raytheon RA1000 1 kW transmitter. It was one of the few that used push pull 833As in the RF, and had a symmetric tank with a huge inductor having a small motorized variometer (link coil) in the center for the antenna connection, and a split variable capacitor. The inductor was for AM band, so it has enough L to work down to 160 as well. Keep an eye open for RA1000s getting dumped, not too many left. > 73 > John > K5PRO > __ > 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.
Re: [AMRadio] Volumax 4300
Seems that someone made an OOPS and hit the WRONG reply button. Sound like this has happened before??? Bob - N0DGN Yeah! Mind yer own bizness! Sheesh!;-) Ed, VA3ES -- John, KB6S wrote: That's what you get for reading mail not meant for The List... shame, shame!! On Wed, 11 Apr 2007, kenw2dtc wrote: > W9DVM said: "Got a 58.3K$ spice order today from The Fresh Market." as part > of the 'Discussion of AM Radio in the Amateur Service' > > I feel like a novice trying to understand this stuff. __ 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] AM - characteristics
Bry Carling wrote: Coverage, coverage, coverage! What memories you had me remember. Anyone else do the "Cutting Edge" in the AM bands? 73 Robert W4RL Robert et al, I confess to an 807 driven BC610 tuning unit exciter, and cathode modulated with the signal from a K-mart plastic turntable. It carried a mile or so with a strong, but poorly-modulated signal on the AM dial... I ran the 250TH rig into a dummy load with Bob Wills music playing (checking out the new modulator, reactor choke combo) at 100w, and out of curiosity, drove around the neighborhood listening to it, with the mobile rig. I was hurrying back to shut the thing off, when I was still hearing it S-9, 2 miles away, but relieved when a signal in Oklahoma covered it up, when he came on and called CQ at 3pm. *whew*. -- 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.
RE: [AMRadio] Source of very nice inductor and variometer for ATN
Thanks for saying that, Bill. I was about to cry at the thought of it. Rick What a horrible thing to do to a RA1000. :-( Better to put up a tuned antenna, and restore the RA1000 to service. :-) 73 de Bill, AB6MT [EMAIL PROTECTED] - Original Message - From: "John Lyles" <[EMAIL PROTECTED]> To: Sent: Wednesday, April 11, 2007 4:32 PM Subject: [AMRadio] Source of very nice inductor and variometer for ATN > A classic balanced line antenna tuning network can be built from the output components of a Raytheon RA1000 1 kW transmitter. It was one of the few that used push pull 833As... __ 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] antenna tuners...
The W1IA homebrew tuner would hold up to 3 kW. Joe W4AAB - Original Message - From: "Brett gazdzinski" <[EMAIL PROTECTED]> To: "'Discussion of AM Radio in the Amateur Service'" Sent: Wednesday, April 11, 2007 1:42 PM Subject: RE: [AMRadio] antenna tuners... > My heathkit antenna tuner has worn out I think, > I built it 20 years ago or more, and I think its shot. > > All the silver plating has worn off the roller bar, which > sometimes results in an open which blows > the diodes out in the swr bridge. > > I took it apart and cleaned things up, but I think > its time for a new tuner. > I would also like to be able to bypass the tuner without > moving coax, so the rigs with built in tuners can > do their automatic thing. > > > For unbalanced antenna's, what is available that can handle say > 3000 watts pep? > > Some headroom is a good thing, no? > > I know better then to buy anything MFJ... > > Anything out there that holds up to AM? > > Brett > N2DTS > > > __ > 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.
Re: [AMRadio] Volumax 4300
Hi Bob, I have a 4300 and I believe I have already scanned the manual. alet me dig it up and I will mail you a CD. Is your address ok on QRZ? Larry WA9VRH - Original Message - From: "Bob Peters" <[EMAIL PROTECTED]> To: "AM" Sent: Wednesday, April 11, 2007 3:53 PM Subject: [AMRadio] Volumax 4300 Anyone got the rear apron pinout??? Do not have a manual...Thanks... Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.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.
Re: [AMRadio] Parasitic Suppressors (or lack thereof)
I've noticed most (if not all) if the PP-triode RF PAs of that period don't show the use of any parasitic suppressors in the grid or plate leads. Also a deck I have (exact vintage unknown) using PP triodes doesn't include them. How did they get away with this? I've never put power to the above-mentioned deck, but have another one where I tried to follow the same practice (I just used copper strap for the plate leads) and I appear to have an intermittent parasitic, so will be incorporating some suppressors in the plate leads. -Larry/NE1S I think they just tolerated the parasitics, and used a lot of trial and error, not really knowing why their transmitters were so squirrely. There was no TV or VHF radio communication to interfere with at the time, and few hams had any capability of measuring the power output of their transmitter, so if it ran at 30% efficiency with loads of parasitics they were none the wiser. I read a story about a Collins mid-30's transmitter, don't remember the model, but I believe it was the one that used a 211 in the rf final. It was one of the very f irst commercial rigs that had the now familiar parasitic chokes consisting of a resistor wrapped with wire. It was reputed to be exceptionally smooth and easy to tune up. This was considered a major advance in transmitter design at the time. Art Collins had figured out the parasitic problem and how to cure it, and his transmitter was noted for its exceptional performance. Don k4kyv __ 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] FS: HQ-100AC, BA Test Gear, Accessories
For Sale: HQ-100, Test Gear, Manuals Hammarlund HQ-100AC with clock. Nice small HF receiver. This one is all original. The front panel looks excellent. It has some scratches, scrapes and scuffs around the front panel trim ring edges and on the cabinet, but basically looks very good. I believe this has the optional XC-455 BFO Kit Installed. With original manual. Untested. $129 Littelfuse clear plastic, wall-mount display rack with cardboard back. Holds 60 tiny tins of 3AG fuses in a space about 14 inches tall by 8 inches wide. The slots are sloped slightly downward to keep the tins from falling out. 49 of the slots are filled with a nice selection of fuses from 1/4 amp up to 20A, mostly concentrated in the 1/4A to 5A range. About half the fuse tins are Littelfuse--the rest are other brands. Ready to mount on your wall and save a long search the next time you need a fuse. $15 plus $8.60 priority flat rate box mailing with tracking. Ohmite Little Devils resistor cabinets--four of them. Youve probably seen these. They have black plastic bodies and red plastic drawers with long compartments in each drawer. Each compartment is labeled and sized to hold a few resistors of one specific value. The cabinets stack neatly and look pretty classy on the workbench. These four cabinets are in nice shape with an occasional small chip here and there. Some drawers have resistors in them, some have capacitors and a range of miscellaneous whatever. A few drawers are empty. About half of the drawer labels are intact but the other half has been torn off or taped over. But it would be simple to create new labels on the PC in any word processor. Time to get organized? $22 Western Electric F-1 handset. The cap over the ear piece has a big chip out of it. Otherwise good. $6 Original Manuals Triplett 630 VOM original manual. $8 including mailing Leader LTC-905 curve tracer original manual. $6 including mailing Eico 1060 Low Ripple Battery Eliminator & Charger. $7 including mailing Jackson 640 Test Oscillator, no covers. $6 including mailing Simpson (Motorola) 407 Remote Aligner. $6 including mailing General Radio 1644-A Megohm Bridge original manual, $10 including mailing Other Literature. All prices plus $2 media mailing. 1001 Uses for the Simpson 260 VOM, Simpson, 965, 80 page paperback, excellent. $10 GE Essential Characteristics Tube Manual, 1973, excellent. $6 GE Essential Characteristics Tube Manual, 1963, comb-bound, very good. $9 RCA RC-22 Receiving Tube Manual, very good. $10 John Lenk, Handbook of Electronic test Equipment, Prentice-Hall Hardback, 1971, 450 pages. $9 John Lenk, Understanding Electronic Schematics, Prentice-Hall hardback with dust jacket, 1981, 275 pages. This relates schematic symbols to the physical part, the theory of their operation and typical circuits they would be found in. Its the most thorough treatment of this subject that Ive ever seen. $9 Derek Cameron, Advanced Oscilloscope Handbook, Reston Hardback with dust jacket, 1977, 200 pages. Good sections on scope functions and how to use them, including storage scopes. It also has 2 good sections on using the scope to test audio and RF amplifiers. But a lot of the book is related to video testing. $8 Greenlee 5/8 inch Round Radio Chassis punch, very good in box. $10 Greenlee 3/4 inch Round Radio Chassis punch, very good in box. $10 Pomona Model 1447 7-pin tall miniature tube test socket adapter. $10 Pomona Model 1449 9-pin tall miniature tube test socket adapter. $10 Elenco XP-450 13.8VDC 4A regulated power supply, good. $14 plus $8.60 priority flat rate box mailing with tracking. Micronta 22-183 DMM. Small, modern handheld unit with test leads. Not auto ranging. Fused input. Nice LCD readout. Has a stand to sit is at an angle on the workbench. Nice meter, working perfectly. Uses 4 AA batteries. $11 B&K Precision Model 2901 R/C Pak. Small, modern R and C substitution box that can also sub for some electrolytics up to 450V. Built in leads. $8 Shure Model 98-108 high-impedance ceramic mic. Short mic element with XLR male plug. Nice looking condition. Untested. $12 RCA WR-50B RF Signal Generator. This is slightly larger than an old VTVM. It covers 85-1700khz in 3 bands and 1.5 to 45Mhz in 3 more bands. It has fixed frequency outputs at 455khz and 10.7Mhz plus a crystal socket, presumably for the fixed frequency of your choice. It has provisions for sweeping 455khz and 10.7Mhz, but I dont see how the sweep width is set--maybe it is fixed. It has internal or external modulation, switch-selected. Output attenuation is uncalibrated and output is not metered. But otherwise, this is a down-and-dirty practical workbench signal gen. Working as designed. I did not test any of the fixed frequency output. $45 Eico 950B Resistance Capacitance Comparator Bridge. Typical R/C Bridge with tuning eye. With original operating manual. Very good condition. $22 Eico 147A Signal Tracer. Typical workbench signal tracer with
Re: [AMRadio] Parasitic Suppressors (or lack thereof) in the Olden Days
ne1s wrote: Olden Days being pre-WWII, that is. I've noticed most (if not all) if the PP-triode RF PAs of that period don't show the use of any parasitic suppressors in the grid or plate leads. Also a deck I have (exact vintage unknown) using PP triodes doesn't include them. How did they get away with this? there wasn't TV, or VHF at the time. Don't think we'd pioneered our way that far north on the spectrum by that point. I've never put power to the above-mentioned deck, but have another one where I tried to follow the same practice (I just used copper strap for the plate leads) and I appear to have an intermittent parasitic, so will be incorporating some suppressors in the plate leads. -Larry/NE1S In my opinion, every T-368, BC-610 and any other rig that does -not- have any sort of VHF parasitic choke suppression, needs to be retrofitted. If, for no other reason, than to exhibit 'good engineering practices', and further help to eliminate stray RFI into devices that act improperly as radio receivers. -- 73 W5OMR (/5 New Orleans) __ 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] Re: Audiophools vs guitar players
All these guitar players and audiophools have done it to drive the cost of tubes to rediculous hights. Other than that, they are totally useless! 73, John, W4AWM You can bet your oxygen-free copper against my $600 a.c. power cord that the culprit is the audiophools. The guitar players have suffered the same fate with their tube type amplifiers as the hams with our triode tube rigs. Ever view the web sites with the $80,000 stereo amplifiers running triode transmitting tubes? Not many electric guitar players or delta blues musicians who actually work for a living can afford to play around with that kind of money. Don k4kyv __ 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] Volumax 4300
Larry it is good...Can you give me the input and output terminals please... That way I can get it up and going...The balance of the terminals I don't think are used... I am assuming 1 and 2 and 9 and 10 are input output but not sure...Thanks Bob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry WA9VRH Sent: Wednesday, April 11, 2007 6:57 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Volumax 4300 Hi Bob, I have a 4300 and I believe I have already scanned the manual. alet me dig it up and I will mail you a CD. Is your address ok on QRZ? Larry WA9VRH - Original Message - From: "Bob Peters" <[EMAIL PROTECTED]> To: "AM" Sent: Wednesday, April 11, 2007 3:53 PM Subject: [AMRadio] Volumax 4300 Anyone got the rear apron pinout??? Do not have a manual...Thanks... Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.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. __ 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] FS: HQ-100AC, BA Test Gear, Accessories
Hi Don, Can you guess or tell me how many fuses are in the Littelfuse display rack and how many resistors in the resistor rack? Thanks and 73, - Greg K2GTM - Original Message - From: "Don Merz" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "BASWAPLIST" <[EMAIL PROTECTED]>; "AM Radio List" ; "Glowbugs" <[EMAIL PROTECTED]> Sent: Wednesday, April 11, 2007 8:31 PM Subject: [AMRadio] FS: HQ-100AC, BA Test Gear, Accessories For Sale: HQ-100, Test Gear, Manuals Hammarlund HQ-100AC with clock. Nice small HF receiver. This one is all original. The front panel looks excellent. It has some scratches, scrapes and scuffs around the front panel trim ring edges and on the cabinet, but basically looks very good. I believe this has the optional XC-455 BFO Kit Installed. With original manual. Untested. $129 Littelfuse clear plastic, wall-mount display rack with cardboard back. Holds 60 tiny tins of 3AG fuses in a space about 14 inches tall by 8 inches wide. The slots are sloped slightly downward to keep the tins from falling out. 49 of the slots are filled with a nice selection of fuses from 1/4 amp up to 20A, mostly concentrated in the 1/4A to 5A range. About half the fuse tins are Littelfuse--the rest are other brands. Ready to mount on your wall and save a long search the next time you need a fuse. $15 plus $8.60 priority flat rate box mailing with tracking. Ohmite "Little Devils" resistor cabinets--four of them. You've probably seen these. They have black plastic bodies and red plastic drawers with long compartments in each drawer. Each compartment is labeled and sized to hold a few resistors of one specific value. The cabinets stack neatly and look pretty classy on the workbench. These four cabinets are in nice shape with an occasional small chip here and there. Some drawers have resistors in them, some have capacitors and a range of miscellaneous whatever. A few drawers are empty. About half of the drawer labels are intact but the other half has been torn off or taped over. But it would be simple to create new labels on the PC in any word processor. Time to get organized? $22 Western Electric F-1 handset. The cap over the ear piece has a big chip out of it. Otherwise good. $6 Original Manuals Triplett 630 VOM original manual. $8 including mailing Leader LTC-905 curve tracer original manual. $6 including mailing Eico 1060 Low Ripple Battery Eliminator & Charger. $7 including mailing Jackson 640 Test Oscillator, no covers. $6 including mailing Simpson (Motorola) 407 Remote Aligner. $6 including mailing General Radio 1644-A Megohm Bridge original manual, $10 including mailing Other Literature. All prices plus $2 media mailing. 1001 Uses for the Simpson 260 VOM, Simpson, 965, 80 page paperback, excellent. $10 GE Essential Characteristics Tube Manual, 1973, excellent. $6 GE Essential Characteristics Tube Manual, 1963, comb-bound, very good. $9 RCA RC-22 Receiving Tube Manual, very good. $10 John Lenk, Handbook of Electronic test Equipment, Prentice-Hall Hardback, 1971, 450 pages. $9 John Lenk, Understanding Electronic Schematics, Prentice-Hall hardback with dust jacket, 1981, 275 pages. This relates schematic symbols to the physical part, the theory of their operation and typical circuits they would be found in. It's the most thorough treatment of this subject that I've ever seen. $9 Derek Cameron, Advanced Oscilloscope Handbook, Reston Hardback with dust jacket, 1977, 200 pages. Good sections on scope functions and how to use them, including storage scopes. It also has 2 good sections on using the scope to test audio and RF amplifiers. But a lot of the book is related to video testing. $8 Greenlee 5/8 inch Round Radio Chassis punch, very good in box. $10 Greenlee 3/4 inch Round Radio Chassis punch, very good in box. $10 Pomona Model 1447 7-pin tall miniature tube test socket adapter. $10 Pomona Model 1449 9-pin tall miniature tube test socket adapter. $10 Elenco XP-450 13.8VDC 4A regulated power supply, good. $14 plus $8.60 priority flat rate box mailing with tracking. Micronta 22-183 DMM. Small, modern handheld unit with test leads. Not auto ranging. Fused input. Nice LCD readout. Has a stand to sit is at an angle on the workbench. Nice meter, working perfectly. Uses 4 AA batteries. $11 B&K Precision Model 2901 R/C Pak. Small, modern R and C substitution box that can also sub for some electrolytics up to 450V. Built in leads. $8 Shure Model 98-108 high-impedance ceramic mic. Short mic element with XLR male plug. Nice looking condition. Untested. $12 RCA WR-50B RF Signal Generator. This is slightly larger than an old VTVM. It covers 85-1700khz in 3 bands and 1.5 to 45Mhz in 3 more bands. It has fixed frequency outputs at 455khz and 10.7Mhz plus a crystal socket, presumably for the fixed frequency of your choice. It has provisions for sweeping 455khz and 10.7Mhz, but I don't see how the sweep width is set--maybe it is fixed. It has internal or external modulation, switch-
Re: [AMRadio] Re: Audiophools vs guitar players
TNX Don... you are totally correct... Don't be putting the guitar guys like me in with the audio phools... I can't afford to use the 6L6GC or 5881's I use for my amps... As for the audio phools... they didn't drop out of the sky... they think such and such tube is better because some jerk with a hoard of tubes wants to make a pile of bux and THAT AIN'T ME or any of the guys I know... allot of guys gave up on their tube amps because of the price of retubing their amps... TNX agn Don... 73 vince ka1iic On Wed, 11 Apr 2007, D. Chester wrote: All these guitar players and audiophools have done it to drive the cost of tubes to rediculous hights. Other than that, they are totally useless! 73, John, W4AWM You can bet your oxygen-free copper against my $600 a.c. power cord that the culprit is the audiophools. The guitar players have suffered the same fate with their tube type amplifiers as the hams with our triode tube rigs. Ever view the web sites with the $80,000 stereo amplifiers running triode transmitting tubes? Not many electric guitar players or delta blues musicians who actually work for a living can afford to play around with that kind of money. Don k4kyv __ 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.
RE: [AMRadio] Re: Audiophools vs guitar players
I resemble that remark as well! I don't know too many guitar players that can afford to drive up the price of anything! Bow W5EFR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Vince Werber Sent: Wednesday, April 11, 2007 20:43 To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Re: Audiophools vs guitar players TNX Don... you are totally correct... Don't be putting the guitar guys like me in with the audio phools... I can't afford to use the 6L6GC or 5881's I use for my amps... As for the audio phools... they didn't drop out of the sky... they think such and such tube is better because some jerk with a hoard of tubes wants to make a pile of bux and THAT AIN'T ME or any of the guys I know... allot of guys gave up on their tube amps because of the price of retubing their amps... TNX agn Don... 73 vince ka1iic On Wed, 11 Apr 2007, D. Chester wrote: >> All these guitar players and audiophools have done it to drive the >> cost of tubes to rediculous hights. Other than that, they are totally useless! >> >> 73, >> >> John, W4AWM > > You can bet your oxygen-free copper against my $600 a.c. power cord > that the culprit is the audiophools. The guitar players have suffered > the same fate with their tube type amplifiers as the hams with our > triode tube rigs. Ever view the web sites with the $80,000 stereo > amplifiers running triode transmitting tubes? Not many electric > guitar players or delta blues musicians who actually work for a living > can afford to play around with that kind of money. > > Don k4kyv > > > __ > 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: 269.2.0/756 - Release Date: 4/10/2007 22:44 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.2.0/756 - Release Date: 4/10/2007 22:44 __ 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] Re: Audiophools vs guitar players
AMEN! Rick > All these guitar players and audiophools have done it to drive the cost of > tubes to rediculous hights. Other than that, they are totally useless! > > 73, > > John, W4AWM You can bet your oxygen-free copper against my $600 a.c. power cord that the culprit is the audiophools. The guitar players have suffered the same fate with their tube type amplifiers as the hams with our triode tube rigs. Ever view the web sites with the $80,000 stereo amplifiers running triode transmitting tubes? Not many electric guitar players or delta blues musicians who actually work for a living can afford to play around with that kind of money. Don k4kyv __ 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] FS: HQ-100AC, BA Test Gear, Accessories
Whoops - sorry for the private post everyone... 73, - Greg K2GTM - Original Message - From: "Greg Miller" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" Sent: Wednesday, April 11, 2007 9:25 PM Subject: Re: [AMRadio] FS: HQ-100AC, BA Test Gear, Accessories Hi Don, Can you guess or tell me how many fuses are in the Littelfuse display rack and how many resistors in the resistor rack? Thanks and 73, - Greg K2GTM - Original Message - From: "Don Merz" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "BASWAPLIST" <[EMAIL PROTECTED]>; "AM Radio List" ; "Glowbugs" <[EMAIL PROTECTED]> Sent: Wednesday, April 11, 2007 8:31 PM Subject: [AMRadio] FS: HQ-100AC, BA Test Gear, Accessories For Sale: HQ-100, Test Gear, Manuals Hammarlund HQ-100AC with clock. Nice small HF receiver. This one is all original. The front panel looks excellent. It has some scratches, scrapes and scuffs around the front panel trim ring edges and on the cabinet, but basically looks very good. I believe this has the optional XC-455 BFO Kit Installed. With original manual. Untested. $129 Littelfuse clear plastic, wall-mount display rack with cardboard back. Holds 60 tiny tins of 3AG fuses in a space about 14 inches tall by 8 inches wide. The slots are sloped slightly downward to keep the tins from falling out. 49 of the slots are filled with a nice selection of fuses from 1/4 amp up to 20A, mostly concentrated in the 1/4A to 5A range. About half the fuse tins are Littelfuse--the rest are other brands. Ready to mount on your wall and save a long search the next time you need a fuse. $15 plus $8.60 priority flat rate box mailing with tracking. Ohmite "Little Devils" resistor cabinets--four of them. You've probably seen these. They have black plastic bodies and red plastic drawers with long compartments in each drawer. Each compartment is labeled and sized to hold a few resistors of one specific value. The cabinets stack neatly and look pretty classy on the workbench. These four cabinets are in nice shape with an occasional small chip here and there. Some drawers have resistors in them, some have capacitors and a range of miscellaneous whatever. A few drawers are empty. About half of the drawer labels are intact but the other half has been torn off or taped over. But it would be simple to create new labels on the PC in any word processor. Time to get organized? $22 Western Electric F-1 handset. The cap over the ear piece has a big chip out of it. Otherwise good. $6 Original Manuals Triplett 630 VOM original manual. $8 including mailing Leader LTC-905 curve tracer original manual. $6 including mailing Eico 1060 Low Ripple Battery Eliminator & Charger. $7 including mailing Jackson 640 Test Oscillator, no covers. $6 including mailing Simpson (Motorola) 407 Remote Aligner. $6 including mailing General Radio 1644-A Megohm Bridge original manual, $10 including mailing Other Literature. All prices plus $2 media mailing. 1001 Uses for the Simpson 260 VOM, Simpson, 965, 80 page paperback, excellent. $10 GE Essential Characteristics Tube Manual, 1973, excellent. $6 GE Essential Characteristics Tube Manual, 1963, comb-bound, very good. $9 RCA RC-22 Receiving Tube Manual, very good. $10 John Lenk, Handbook of Electronic test Equipment, Prentice-Hall Hardback, 1971, 450 pages. $9 John Lenk, Understanding Electronic Schematics, Prentice-Hall hardback with dust jacket, 1981, 275 pages. This relates schematic symbols to the physical part, the theory of their operation and typical circuits they would be found in. It's the most thorough treatment of this subject that I've ever seen. $9 Derek Cameron, Advanced Oscilloscope Handbook, Reston Hardback with dust jacket, 1977, 200 pages. Good sections on scope functions and how to use them, including storage scopes. It also has 2 good sections on using the scope to test audio and RF amplifiers. But a lot of the book is related to video testing. $8 Greenlee 5/8 inch Round Radio Chassis punch, very good in box. $10 Greenlee 3/4 inch Round Radio Chassis punch, very good in box. $10 Pomona Model 1447 7-pin tall miniature tube test socket adapter. $10 Pomona Model 1449 9-pin tall miniature tube test socket adapter. $10 Elenco XP-450 13.8VDC 4A regulated power supply, good. $14 plus $8.60 priority flat rate box mailing with tracking. Micronta 22-183 DMM. Small, modern handheld unit with test leads. Not auto ranging. Fused input. Nice LCD readout. Has a stand to sit is at an angle on the workbench. Nice meter, working perfectly. Uses 4 AA batteries. $11 B&K Precision Model 2901 R/C Pak. Small, modern R and C substitution box that can also sub for some electrolytics up to 450V. Built in leads. $8 Shure Model 98-108 high-impedance ceramic mic. Short mic element with XLR male plug. Nice looking condition. Untested. $12 RCA WR-50B RF Signal Generator. This is slightly larger than an old VTVM. It covers 85-1700khz in 3 bands and 1.5 to 45Mhz in 3 mo
[AMRadio] $80,000 stereo amplifiers
Don k4kyv posted -> Ever view the web sites with the $80,000 stereo amplifiers running triode transmitting tubes? <- Er, no, Don. Would those be the ones that have tubes with gold-plated pins? If not, I wouldn't pay a cent more than $40,000. Nup. Terry, KC9KEL ** 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.
Re: [AMRadio] $80,000 stereo amplifiers
[EMAIL PROTECTED] wrote: Don k4kyv posted -> Ever view the web sites with the $80,000 stereo amplifiers running triode transmitting tubes? <- Er, no, Don. Would those be the ones that have tubes with gold-plated pins? If not, I wouldn't pay a cent more than $40,000. Nup. do a google search for single-ended Class A triode amplifiers. There was one, that used a single 833, that was selling for somewhere in the $triple-digit,000.oo range. -- 73 = Best Regard*S*, -Geoff/W5OMR/(/5 New Orleans) __ 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] $80,000 stereo amplifiers
Here is your $350,000 a pair 833 audio amps: http://stereophile.com/tubepoweramps/704wavac/ 73 Don N9OO Geoff/W5OMR wrote: [EMAIL PROTECTED] wrote: Don k4kyv posted -> Ever view the web sites with the $80,000 stereo amplifiers running triode transmitting tubes? <- Er, no, Don. Would those be the ones that have tubes with gold-plated pins? If not, I wouldn't pay a cent more than $40,000. Nup. do a google search for single-ended Class A triode amplifiers. There was one, that used a single 833, that was selling for somewhere in the $triple-digit,000.oo range. -- 73 = Best Regard*S*, -Geoff/W5OMR/(/5 New Orleans) __ 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.
Re: [AMRadio] FS: HQ-100AC, BA Test Gear, Accessories
hi Don' I would like both Greenlee Chassis Punches, 5/8 and 3/4 inch -- KC7HKP George Yazzolino 14801 NE 20th Circle Vancouver, Wa. 98684 Grid CN-85 [EMAIL PROTECTED] -- Original message -- From: Don Merz <[EMAIL PROTECTED]> > For Sale: HQ-100, Test Gear, Manuals > > Hammarlund HQ-100AC with clock. Nice small HF > receiver. This one is all original. The front panel > looks excellent. It has some scratches, scrapes and > scuffs around the front panel trim ring edges and on > the cabinet, but basically looks very good. I believe > this has the optional XC-455 BFO Kit Installed. With > original manual. Untested. $129 > > Littelfuse clear plastic, wall-mount display rack with > cardboard back. Holds 60 tiny tins of 3AG fuses in a > space about 14 inches tall by 8 inches wide. The slots > are sloped slightly downward to keep the tins from > falling out. 49 of the slots are filled with a nice > selection of fuses from 1/4 amp up to 20A, mostly > concentrated in the 1/4A to 5A range. About half the > fuse tins are Littelfuse--the rest are other brands. > Ready to mount on your wall and save a long search the > next time you need a fuse. $15 plus $8.60 priority > flat rate box mailing with tracking. > > Ohmite Little Devils resistor cabinets--four of > them. Youve probably seen these. They have black > plastic bodies and red plastic drawers with long > compartments in each drawer. Each compartment is > labeled and sized to hold a few resistors of one > specific value. The cabinets stack neatly and look > pretty classy on the workbench. These four cabinets > are in nice shape with an occasional small chip here > and there. Some drawers have resistors in them, some > have capacitors and a range of miscellaneous whatever. > A few drawers are empty. About half of the drawer > labels are intact but the other half has been torn off > or taped over. But it would be simple to create new > labels on the PC in any word processor. Time to get > organized? $22 > > Western Electric F-1 handset. The cap over the ear > piece has a big chip out of it. Otherwise good. $6 > > Original Manuals > > Triplett 630 VOM original manual. $8 including mailing > Leader LTC-905 curve tracer original manual. $6 > including mailing > Eico 1060 Low Ripple Battery Eliminator & Charger. $7 > including mailing > Jackson 640 Test Oscillator, no covers. $6 including > mailing > Simpson (Motorola) 407 Remote Aligner. $6 including > mailing > General Radio 1644-A Megohm Bridge original manual, > $10 including mailing > > Other Literature. All prices plus $2 media mailing. > > 1001 Uses for the Simpson 260 VOM, Simpson, 965, 80 > page paperback, excellent. $10 > GE Essential Characteristics Tube Manual, 1973, > excellent. $6 > GE Essential Characteristics Tube Manual, 1963, > comb-bound, very good. $9 > RCA RC-22 Receiving Tube Manual, very good. $10 > John Lenk, Handbook of Electronic test Equipment, > Prentice-Hall Hardback, 1971, 450 > pages. $9 > John Lenk, Understanding Electronic Schematics, > Prentice-Hall hardback with dust > jacket, 1981, 275 pages. This relates schematic > symbols to the physical part, the theory > of their operation and typical circuits they would > be found in. Its the most thorough > treatment of this subject that Ive ever seen. $9 > Derek Cameron, Advanced Oscilloscope Handbook, Reston > Hardback with dust jacket, > 1977, 200 pages. Good sections on scope functions > and how to use them, including > storage scopes. It also has 2 good sections on > using the scope to test audio and RF > amplifiers. But a lot of the book is related to > video testing. $8 > > Greenlee 5/8 inch Round Radio Chassis punch, very good > in box. $10 > Greenlee 3/4 inch Round Radio Chassis punch, very good > in box. $10 > Pomona Model 1447 7-pin tall miniature tube test > socket adapter. $10 > Pomona Model 1449 9-pin tall miniature tube test > socket adapter. $10 > Elenco XP-450 13.8VDC 4A regulated power supply, good. > $14 plus $8.60 priority flat > rate box mailing with tracking. > > Micronta 22-183 DMM. Small, modern handheld unit with > test leads. Not auto ranging. Fused input. Nice LCD > readout. Has a stand to sit is at an angle on the > workbench. Nice meter, working perfectly. Uses 4 AA > batteries. $11 > > B&K Precision Model 2901 R/C Pak. Small, modern R and > C substitution box that can also sub for some > electrolytics up to 450V. Built in leads. $8 > > Shure Model 98-108 high-impedance ceramic mic. Short > mic element with XLR male plug. Nice looking > condition. Untested. $12 > > RCA WR-50B RF Signal Generator. This is slightly > larger than an old VTVM. It covers 85-1700khz in 3 > bands and 1.5 to 45Mhz in 3 more bands. It has fixed > frequency outputs at 455khz and 10.7Mhz plus a crystal > socket, presumably for the fixed frequency of your > choice. It has provisions for sweepi
[AMRadio] RA1000 for parts
The Raytheon 1000 was one of the ugliest oversized 1 Kw boxes. It was the size of a small bathroom, and weight is comparable. The circuit was straight push pull 813s driving 833s. Everything about it was overkill. Much of the baseplate iron was oil-filled or potted. I stripped one of parts which had been in Roswell for years, and was in very horrible shape. Some of the var. capacitors had their plates partly melted and arced. It ran overheated so the tar and oil leaked on the bottom, and it had no hope of running, someone had already started scavenging by the time I got to it. So i didn't feel bad releving it of good components such as these. I certainly wouldn't recommend tearing apart at cherry RA1000, but based on the vintage and the rarety of them, chances of finding a good 'un are low. One more point, the iron out of this RA1000 carcass went to local hams, several who were able to build up nice homebrew AM transmitter from them. So it wasn't a total loss to the metal yard. > Message: 4 > Date: Wed, 11 Apr 2007 16:28:47 -0700 > From: "Bill Smith" <[EMAIL PROTECTED]> > Subject: Re: [AMRadio] Source of very nice inductor and variometer for > ATN > To: <[EMAIL PROTECTED]>, "Discussion of AM Radio in the Amateur Service" > > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="iso-8859-1" > > What a horrible thing to do to a RA1000. :-( > > Better to put up a tuned antenna, and restore the RA1000 to service. :-) > > 73 de Bill, AB6MT > [EMAIL PROTECTED] > > - Original Message - > From: "John Lyles" <[EMAIL PROTECTED]> > To: > Sent: Wednesday, April 11, 2007 4:32 PM > Subject: [AMRadio] Source of very nice inductor and variometer for ATN > > > > A classic balanced line antenna tuning network can be built from the > output components of a Raytheon RA1000 1 kW transmitter. It was one of the > few that used push pull 833As in the RF, and had a symmetric tank with a > huge inductor having a small motorized variometer (link coil) in the center > for the antenna connection, and a split variable capacitor. The inductor was > for AM band, so it has enough L to work down to 160 as well. Keep an eye > open for RA1000s getting dumped, not too many left. > > 73 > > John > > K5PRO > > -- > > Message: 7 > Date: Wed, 11 Apr 2007 18:40:45 -0500 > From: "Rick Brashear" <[EMAIL PROTECTED]> > Subject: RE: [AMRadio] Source of very nice inductor and variometer for > ATN > To: "'Discussion of AM Radio in the Amateur Service'" > > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="us-ascii" > > Thanks for saying that, Bill. I was about to cry at the thought of it. > Rick > __ 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] early parasitic suppression
Another source of early information on 'Stopper' networks in transmitters was the original 500 kW WLW report in Proc of IRE by Fyler of GE (1930s). They had large flames caused by parasitic oscillations and had to stop them to prevent distruction. 73 John K5PRO > Message: 10 > Date: Wed, 11 Apr 2007 19:25:24 -0500 > From: "D. Chester" <[EMAIL PROTECTED]> > Subject: Re: [AMRadio] Parasitic Suppressors (or lack thereof) > To: > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > > > I've noticed most (if not all) if the PP-triode RF PAs of that period > > don't > > show the use of any parasitic suppressors in the grid or plate leads. Also > > a > > deck I have (exact vintage unknown) using PP triodes doesn't include them. > > > > How did they get away with this? > > > > I've never put power to the above-mentioned deck, but have another one > > where > > I tried to follow the same practice (I just used copper strap for the > > plate > > leads) and I appear to have an intermittent parasitic, so will be > > incorporating some suppressors in the plate leads. > > > > -Larry/NE1S > > I think they just tolerated the parasitics, and used a lot of trial and > error, not really knowing why their transmitters were so squirrely. There > was no TV or VHF radio communication to interfere with at the time, and few > hams had any capability of measuring the power output of their transmitter, > so if it ran at 30% efficiency with loads of parasitics they were none the > wiser. I read a story about a Collins mid-30's transmitter, don't remember > the model, but I believe it was the one that used a 211 in the rf final. It > was one of the very f irst commercial rigs that had the now familiar > parasitic chokes consisting of a resistor wrapped with wire. It was reputed > to be exceptionally smooth and easy to tune up. This was considered a > major advance in transmitter design at the time. Art Collins had figured > out the parasitic problem and how to cure it, and his transmitter was noted > for its exceptional performance. > > Don k4kyv > > __ 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.
