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161. [Amps] TL-922 QSK Boards (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 13 Jul 2012 20:31:21 -0700
Here are the prices for the W7RY QSK board: W7RY TL-922 QSK Board $16.00 USD Each W7RY Universal Step Start Board $13.00 Each Super fast and super quiet RF input reed relay $16.00 Each US Shipping $3
/archives//html/Amps/2012-07/msg00194.html (7,089 bytes)

162. [Amps] As seen on QTH.com (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 20 Jul 2012 21:51:36 -0700
Sounds like a good deal ?? This is from QTH.com 73 Jim W7RY TUBES - Five used 833As For Sale Hello all, I have five used 833As for sale. These are Chinese made. They were removed from our broadcast t
/archives//html/Amps/2012-07/msg00235.html (6,935 bytes)

163. [Amps] Drake L4B 50K Resistors HOT!! (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 20 Jul 2012 22:02:53 -0700
I was just repairing a Drake L4B that I picked up from my want listing on QTH.com. I just happened to measure the temperature of the 50K 50 watt resistors in the power supply with my infrared thermom
/archives//html/Amps/2012-07/msg00236.html (6,935 bytes)

164. Re: [Amps] Overdrive protection (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 26 Jul 2012 18:21:49 -0700
My Icom 7600, 751A and IC7200 dont have the problem. The Kenwood TS-830S on the other hand.... 150+ watts on first keyup. 73 Jim W7RY Of course there is but such a protection circuit would make the a
/archives//html/Amps/2012-07/msg00289.html (10,662 bytes)

165. Re: [Amps] Overdrive protection (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 27 Jul 2012 12:39:53 -0700
Although the 756 Pro line is notorious for this,...... 73 Roger (K8RI) What do you base your statement on Roger? Just hearsay or actual experience? Something on the web? If so, could you point me to
/archives//html/Amps/2012-07/msg00310.html (9,535 bytes)

166. Re: [Amps] Overdrive protection (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 27 Jul 2012 12:54:35 -0700
Duh... Why not just use the RF PWR adjustment on the front of the transceiver and save all that costs and wasted heat dissipated by the attenuator. "Discipline" is the keyword. With proper drive powe
/archives//html/Amps/2012-07/msg00313.html (10,061 bytes)

167. Re: [Amps] Dedicated RF (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 27 Jul 2012 21:50:18 -0700
And they conveniently overlooked the detail that 160 meters starts at 1.8 MHz Not 2.0 MHz. Any idea on price? I bet they're proud of it! 73 Jim W7RY Haven't seen mention of this. The website was rece
/archives//html/Amps/2012-07/msg00323.html (7,292 bytes)

168. Re: [Amps] Dedicated RF (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 29 Jul 2012 16:54:42 -0700
We're talking about RTTY rag chewing and contesting. And SSTV. 73 Jim W7RY CCS? Are we talking about broadcasting or hamradio? ;-) Bert, VE3NR And just what SS devices would you suggest that will run
/archives//html/Amps/2012-07/msg00370.html (12,128 bytes)

169. Re: [Amps] IMD test question (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Wed, 1 Aug 2012 21:07:19 -0700
Larry.. Why not just use one transmitter with two audio tones 2 KHz apart? Can you expound on this a bit? 73 Jim W7RY Bill, I have made amp IMD measurements with the circuit shown at http://www.w0qe.
/archives//html/Amps/2012-08/msg00031.html (10,044 bytes)

170. Re: [Amps] Henry 2K-2 3-500 mod (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 5 Aug 2012 12:59:36 -0700
So how much room is between the top of the cabinet and the plate cap? What about a lower profile plate cap? Are you trying to use the same chimneys? I've heard of others running 3-500s in older henry
/archives//html/Amps/2012-08/msg00109.html (9,935 bytes)

171. [Amps] 8877 Blower (score: 1)
Author: Jim W7RY <jimw7ry@gmail.com>
Date: Tue, 7 Aug 2012 18:44:42 -0700
Actually Carl, the Ameritron AL-1500 part number (410-3737) crosses to a *G2S085-AA19-15. Ameritron stocks the part number you posted but it has no mounting flange. At least according to this page: h
/archives//html/Amps/2012-08/msg00125.html (6,566 bytes)

172. [Amps] ALC Overshoot FTDX-5000 (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 13 Aug 2012 17:45:58 -0700
I thought you would like to know what a friend of mine found on his new (less than 1 year old) FTDX-5000 for ALC overshoot... Setting the power out to 25.5 watts the overshoot reached 26.9 amounting
/archives//html/Amps/2012-08/msg00188.html (7,281 bytes)

173. Re: [Amps] ALC Overshoot FTDX-5000 (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 13 Aug 2012 18:55:57 -0700
I agree. Overshoot should have been in Quotes. "Overshoot". Because there is none. That's not real overshoot, that's just a percent or two, within standard reference errors. "Overshoot" is usually a
/archives//html/Amps/2012-08/msg00192.html (9,294 bytes)

174. Re: [Amps] ALC Overshoot FTDX-5000 (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 13 Aug 2012 18:57:28 -0700
Not sure. But It measures a single dit at 60 WPM CW just fine. 73 Jim W7RY What is the time constant of the Powermaster? Then only clear way to measure the sub 5 ms spikes is with a scope. 73, ... Jo
/archives//html/Amps/2012-08/msg00193.html (10,008 bytes)

175. Re: [Amps] TL922A recommended mods? (score: 1)
Author: Jim W7RY <jimw7ry@gmail.com>
Date: Tue, 14 Aug 2012 08:48:03 -0700
I offer a circuit board for this. But includes a bias switching system as well. The sb 200 sb 220 and drake l4b will be ready shortly. See my qrz.comcallsign for details. 73 _________________________
/archives//html/Amps/2012-08/msg00202.html (8,976 bytes)

176. Re: [Amps] TL922A recommended mods? (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Tue, 14 Aug 2012 17:26:59 -0700
See pictures here of the TL-922 QSK and step start modification: http://s900.photobucket.com/albums/ac206/w7ry/QSK%20Modifications%20to%20my%20TL-922/ 73 Jim W7RY I offer a circuit board for this. Bu
/archives//html/Amps/2012-08/msg00206.html (9,483 bytes)

177. Re: [Amps] 87a will tell you, too (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Wed, 15 Aug 2012 17:01:26 -0700
I can get "over shoot" or a full-power brief spike of RF is the K3. The rig is set for, say, 40 watts output and on its first key down, voice or CW, it jumps to 100 watts for a very brief moment and
/archives//html/Amps/2012-08/msg00227.html (9,056 bytes)

178. Re: [Amps] K3 spike problem (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 16 Aug 2012 14:24:15 -0700
Ha ha. I've heard it all now. So the factory cannot produce a radio which anybody, anywhere can buy and take out of the box and get on the air straight away. The owner has to fix it first! . . . . Af
/archives//html/Amps/2012-08/msg00259.html (8,560 bytes)

179. Re: [Amps] $120 tube running a 1500 watt amplifier (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 19 Aug 2012 19:09:27 -0700
If someone came up with a socket, the price of that tube would skyrocket very quickly and/or supplies would dry up very quickly. 73, Alek. VK6APK Exactly! 73 Jim W7RY ________________________________
/archives//html/Amps/2012-08/msg00332.html (7,427 bytes)

180. [Amps] Amperex 3-500Z / 8802 And Drake L4B (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Wed, 22 Aug 2012 21:50:58 -0700
Couple of questions.... Does anyone have a copy of the Amperex 3-500/8802 tube spec sheet they can send me? Also, what do folks typically get for idling current (ZSRC) with Eimac 3-500s in a Drake L4
/archives//html/Amps/2012-08/msg00355.html (6,859 bytes)

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