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Total 573 documents matching your query.

121. Re: [Amps] ICOM PRO III QSK (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 9 Dec 2011 14:53:04 -0800
I've not used the H-Send line. I like to use the T8 line. It would be interesting to tap it and make the same tests. 73 Jim W7RY _______________________________________________ Amps mailing list Amps
/archives//html/Amps/2011-12/msg00084.html (14,595 bytes)

122. Re: [Amps] ICOM PRO III QSK (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 9 Dec 2011 20:41:49 -0800
Transmit 8 Volt line... Which goes to +8 volts DC when put into transmit mode. On the schematic, it's depicted at T8. 73 Jim W7RY What do you mean by the T8 line? Rick, N6PE == I've not used the H-Se
/archives//html/Amps/2011-12/msg00086.html (15,333 bytes)

123. Re: [Amps] ICOM PRO III QSK (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 10 Dec 2011 21:11:53 -0800
Larry.. I observed the same timing on my 7000. But if you measure T8, (8 volts on transmit) I think you will find that the RF does not continue after T8 goes back low. I also measured the 7200. T8 is
/archives//html/Amps/2011-12/msg00090.html (11,890 bytes)

124. Re: [Amps] Warm up and on time question... (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Tue, 13 Dec 2011 10:22:44 -0800
Leave it on. Filament time is better than the inrush current. The step start in the AL-82 is VERY short which can have high inrush current on the tube filaments. 73 Jim W7RY _________________________
/archives//html/Amps/2011-12/msg00103.html (9,088 bytes)

125. Re: [Amps] Linear Amplifier Tuning---PROPERLY! (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 19 Dec 2011 19:43:27 -0800
http://www.w8ji.com/loading_amplifier.htm 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2011-12/msg00147.html (10,110 bytes)

126. Re: [Amps] Centurion 422 (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Wed, 28 Dec 2011 13:08:03 -0800
Did he try Ten-Tec Gary? 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2011-12/msg00249.html (7,680 bytes)

127. Re: [Amps] Centurion (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 29 Dec 2011 14:43:51 -0800
It's a Centralab switch. All he needs is the ceramic parts. The front part of the switch is fine. The 10 meter contacts burned up. Not sure what the circumstances were. Gary, you may be able to remov
/archives//html/Amps/2011-12/msg00270.html (10,926 bytes)

128. Re: [Amps] IMD (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 29 Dec 2011 14:47:33 -0800
Defective radios is probably the most of it. Slow ALC is probably the rest... or rf controlled electronic bias that keep the amplifier cut off between dits. 73 Jim W7RY ______________________________
/archives//html/Amps/2011-12/msg00272.html (8,593 bytes)

129. Re: [Amps] Henry HF 2500 (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 6 Jan 2012 06:46:32 -0800
That's just a 2K converted to a different tube. Notice the fake lable! 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/ma
/archives//html/Amps/2012-01/msg00089.html (9,299 bytes)

130. Re: [Amps] Need inexpensive source of .02 5 or 6Kv Ceramic Disc Caps (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 19 Jan 2012 21:54:14 -0800
Mouser has .01 5 or 6 KV caps. They are not cheap though.. About 5 or 6 bucks each. So you would need 2 of them? I know... Not cheap... But that is a pretty tall order for that type of cap. I have bo
/archives//html/Amps/2012-01/msg00160.html (9,085 bytes)

131. Re: [Amps] Meter for TL-922 (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 27 Jan 2012 12:16:31 -0800
There have been some on EBay 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-01/msg00213.html (7,783 bytes)

132. [Amps] 4-400 W Screen Voltage (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 28 Jan 2012 17:18:06 -0800
Has anyone run 4-400s with screen voltage successfully in an amplifier with passive grid (50 ohm load for the grid drive)? I have the hankerin to build an amplifier with 3 of them. It will be 160-10
/archives//html/Amps/2012-01/msg00242.html (6,799 bytes)

133. Re: [Amps] 3-500z amp homebrew question (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 12 Feb 2012 17:11:42 -0800
Well done! Suitable for framing! 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-02/msg00117.html (12,468 bytes)

134. Re: [Amps] wanted: Eimac SK-516 chimney (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 20 Feb 2012 20:44:00 -0800
There has been one on www.qth.com 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-02/msg00234.html (7,661 bytes)

135. [Amps] 8877 Amplifier Photos (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 1 Mar 2012 22:40:38 -0800
I have just posted many more pictures of my homebrew 8877 amplifier on Photobucket: http://s900.photobucket.com/albums/ac206/w7ry/8877%20Amplifier/?start=all The amp is patterned after the K8RA desig
/archives//html/Amps/2012-03/msg00025.html (6,967 bytes)

136. Re: [Amps] 8877 Amplifier Photos (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 2 Mar 2012 06:51:05 -0800
It's just a standard 10 turn 10K ohm linear taper pot. The gears are sized is so I have 30 turns available on the vacuum caps. 73 Jim W7RY _______________________________________________ Amps mailing
/archives//html/Amps/2012-03/msg00030.html (8,798 bytes)

137. Re: [Amps] Elecraft W2, nope (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 2 Mar 2012 20:56:14 -0800
I have a Power Master and love it! I did not like the LP unit. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/li
/archives//html/Amps/2012-03/msg00048.html (11,143 bytes)

138. [Amps] Looking For a 8877 Right Angle Chimney (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 2 Mar 2012 22:40:14 -0800
Does anyone happen to have a "right angle" chimney that would fit and 8877. I would like to think about taking the exhaust from the tube out the back of the amplifier instead of the top. Let me know.
/archives//html/Amps/2012-03/msg00049.html (6,721 bytes)

139. Re: [Amps] Relay suggestions please (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 9 Mar 2012 07:32:32 -0800
Inrad? Take a look at the relays that Jim W8ZR uses in his station and antenna switches. They work well and are very inexpensive. 73 Jim W7RY _______________________________________________ Amps mail
/archives//html/Amps/2012-03/msg00076.html (10,100 bytes)

140. [Amps] Chinese Caps Defective @ RF (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 23 Mar 2012 23:00:41 -0700
Well I had another Chinese cap blow up on me in my 8877 amplifier. I had 3ea 1000PF 12KV caps in parallel for the plate blocking caps. I was tuning the amp on 10 meters and KERBLEWEY! I have successf
/archives//html/Amps/2012-03/msg00248.html (8,320 bytes)

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