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121. [Amps] GS35B Another Tip (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Thu, 09 Sep 2010 06:59:41 +0800
The GS35B can be a little difficult to handle or remove from the socket. To overcome this problem, I made up a small T bar from 1/2 inch copper pipe and on the bottom of it, I silver soldered a hex h
/archives//html/Amps/2010-09/msg00042.html (6,739 bytes)

122. Re: [Amps] GS35B questions (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 10 Sep 2010 06:20:08 +0800
Sockets are here. http://shop.ebay.com/nepeke25/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p4340 They are the best you will ever see. Superb quality. 73, Alek. http://www.qrz.com/db/vk6apk http://www
/archives//html/Amps/2010-09/msg00046.html (10,689 bytes)

123. Re: [Amps] GS35B questions (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 10 Sep 2010 08:19:31 +0800
Unbelievable!!! When I posted the link, there was the GS35B socket there as well. It must have just expried. Rest assured, the guy does make them. I have one here, as does VK6WF. I also have a pair o
/archives//html/Amps/2010-09/msg00048.html (9,613 bytes)

124. Re: [Amps] Pulse tuning (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Thu, 23 Sep 2010 19:58:55 +0800
Surely, with pulse tuning, you are getting the duty cycle as close as possible to ssb conditions. Therefore you are tuning your amplifier to the absolute optimum level. When you tune with full carrie
/archives//html/Amps/2010-09/msg00274.html (9,866 bytes)

125. Re: [Amps] Pulse tuning (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 24 Sep 2010 06:23:51 +0800
I was always under the impression that unprocessed ssb was around 30% - 50% duty. Sounds like a good ballpark figure. That's exactly my point. You keep presenting my argument for me. By tuning up at
/archives//html/Amps/2010-09/msg00289.html (10,296 bytes)

126. Re: [Amps] Pulse tuning (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 24 Sep 2010 06:35:35 +0800
I have no reason to doubt that Gary. I will try it this evening when I have finished the day's toil. Sometimes it is fun to get in there and split hairs. Alek. VK6APK PS: Robrk. Downunder, we use 820
/archives//html/Amps/2010-09/msg00290.html (17,613 bytes)

127. Re: [Amps] Why are 833s so Expensive (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Mon, 27 Sep 2010 11:13:25 +0800
Yeah, I've just bought 4 GU81M's and Dr Alex is posting me a pair of sockets as I write. Should be an interesting project. . . . if I can ever find the time. 73, Alek VK6APK From sunny Binningup, Wes
/archives//html/Amps/2010-09/msg00316.html (8,643 bytes)

128. Re: [Amps] Why are 833s so Expensive (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Mon, 27 Sep 2010 16:34:12 +0800
G'day Dave, Yes, I would envisage a low frequency, monoband amp with the GU81M's. Dunno about 4 of them. I'm sure 2 will do. I've always fancied the idea of having a microwave oven door glass and scr
/archives//html/Amps/2010-09/msg00319.html (13,490 bytes)

129. Re: [Amps] Why are 833s so Expensive (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Tue, 28 Sep 2010 06:15:21 +0800
Now THAT is the best audiophool stuff I've read in a long, long time. Thanks for the link. 73, Alek. VK6APK From sunny Binningup, Western Australia http://www.qrz.com/db/vk6apk http://www.qrz.com/db/
/archives//html/Amps/2010-09/msg00335.html (11,386 bytes)

130. Re: [Amps] GRIPE: Why must stuff like this come up on e-bay? (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Thu, 07 Oct 2010 19:48:47 +0800
Ha! Even worse when you live in another continent! It's ok though. I'm happy to get off on the pictures. I collect amp pics and tube pics. It's my kinda porno. Yeah, I know. I'm sick. Actually, when
/archives//html/Amps/2010-10/msg00079.html (8,731 bytes)

131. Re: [Amps] The old PEP question. (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 08 Oct 2010 08:37:19 +0800
Take a look at http://vk1od.net/module/PepAmp/PeakAmp.htm and build it. You will then be able to read PEP on your meter. As for your original question. I dunno. 73, Alek. VK6APK From sunny Binningup,
/archives//html/Amps/2010-10/msg00109.html (8,964 bytes)

132. Re: [Amps] The old PEP question. (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 08 Oct 2010 09:11:42 +0800
That's dead right. Just tried it with my pair of 3-500Z's, on 14 MHz, into a dummy load. Reading on LP-100A is 1320 Watts sending dits at 30wpm Plate volts (unloaded) 3200V Plate current (key down) 6
/archives//html/Amps/2010-10/msg00112.html (9,861 bytes)

133. Re: [Amps] The old PEP question. (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 08 Oct 2010 14:34:08 +0800
That's dead right. Just tried it with my pair of 3-500Z's, on 14 MHz, into a dummy load. Reading on LP-100A is 1320 Watts sending dits at 30wpm Plate volts (unloaded) 3200V Plate current (key down) 6
/archives//html/Amps/2010-10/msg00113.html (10,203 bytes)

134. [Amps] O.T. Emails Gone. (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 08 Oct 2010 14:38:37 +0800
Every once in a while, postings to this reflector go into a black hole, never to be seen again. It has happened to me twice in the last 2 weeks. I just re sent a reply to Carl's email that I had sent
/archives//html/Amps/2010-10/msg00114.html (7,767 bytes)

135. Re: [Amps] O.T. Emails Gone. (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 08 Oct 2010 14:51:03 +0800
I guess some emails are going long path. Depends on the grey line. 73, Alek. VK6APK From sunny Binningup, Western Australia http://www.qrz.com/db/vk6apk http://www.qrz.com/db/vk6ap == Email scanned b
/archives//html/Amps/2010-10/msg00116.html (9,997 bytes)

136. Re: [Amps] Which LDG Autotuner for Amp Input? (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sun, 10 Oct 2010 05:27:07 +0800
W4RT Electronics sells them. http://www.w4rt.com/ You get the complete AT-100Pro and the "AMP" chip. You gotta take the board out of the box and swap the chip yourself. Then that board/chip goes into
/archives//html/Amps/2010-10/msg00147.html (11,775 bytes)

137. Re: [Amps] Circuit for GS35B (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Mon, 11 Oct 2010 15:57:28 +0800
Hi Andre Try http://www.gs35b.com/ 73, Alek VK6APK http://www.qrz.com/db/vk6apk http://www.qrz.com/db/vk6ap _______________________________________________ Amps mailing list Amps@contesting.com http:
/archives//html/Amps/2010-10/msg00172.html (7,636 bytes)

138. Re: [Amps] 6146 via 572b's (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Wed, 13 Oct 2010 04:54:58 +0800
Just get rid of the 817. Problem solved. 73, Alek. VK6APK From sunny Binningup, Western Australia http://www.qrz.com/db/vk6apk http://www.qrz.com/db/vk6ap == Email scanned by PC Tools - No viruses or
/archives//html/Amps/2010-10/msg00199.html (8,985 bytes)

139. Re: [Amps] AL1200, high input swr, all bands (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Mon, 18 Oct 2010 15:29:26 +0800
Amplifier input/output relays? Are they making and breaking as they should? I fixed a AL811 amp once which had the relays cooked. Dunno how they do things in the 1200. Knowing Ameritron, it will be j
/archives//html/Amps/2010-10/msg00275.html (9,230 bytes)

140. Re: [Amps] use or not coaxial audio cable to transmitter's (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sun, 31 Oct 2010 17:54:22 +0800
Get yourself some ferrite rods and wind as many turns of rg58 as you can fit on it to make a 'line isolator' choke. Place this choke in the rg58 coax line close to your pll driver. Similarly. Make a
/archives//html/Amps/2010-10/msg00480.html (10,781 bytes)


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