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References: [ +from:w7ry@arrl.net: 163 ]

Total 163 documents matching your query.

121. [Amps] Parting out Heathkit HL-2200 (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Thu, 11 Jun 2009 22:18:19 -0700
Parting out a Heathkit HL-2200 amplifier. I have all parts but the grid/high voltage meter, and the rectifier board (It's trashed) Front panel is usable but scratched. Non smoker Eimac 3-500Z tubes w
/archives//html/Amps/2009-06/msg00057.html (7,705 bytes)

122. [Amps] Parting out Heathkit HL-2200 (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Thu, 11 Jun 2009 22:22:57 -0700
Parting out a Heathkit HL-2200 amplifier. I have all parts but the grid/high voltage meter, and the rectifier board (It's trashed) Front panel is usable but scratched. Non smoker Eimac 3-500Z tubes w
/archives//html/Amps/2009-06/msg00058.html (7,739 bytes)

123. Re: [Amps] Titan quits query more (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 28 Jun 2009 13:11:34 -0700
Have you checked the interlocks on both the RF deck and the power supply? 73 Jim W7RY -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.
/archives//html/Amps/2009-06/msg00130.html (8,929 bytes)

124. Re: [Amps] Experience with Svetlana 3CX800A7? (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 28 Jun 2009 16:23:44 -0700
I don't think they exist. As I remember, they were planning on TRYING to make them but were never successful. Svetlana doesn't exist as we knew it when George Badger and someone else (I don't remembe
/archives//html/Amps/2009-06/msg00136.html (8,395 bytes)

125. Re: [Amps] Tube choice for SB-200 on 6 meters (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sat, 11 Jul 2009 17:08:43 -0700
Well said Carl. 73 Jim W7RY -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-07/msg00152.html (16,629 bytes)

126. Re: [Amps] RF Choke in Titan 425 Burned (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 12 Jul 2009 14:00:48 -0700
I use the RF parts choke in my 3CX800 (160-10) amplifier. BUT I have a .01 Mfd cap at the base of the choke. Very important for keeping RF out of the power supply. Not sure if the RF parts choke will
/archives//html/Amps/2009-07/msg00161.html (9,440 bytes)

127. [Amps] A-480 Plate Transformer Core (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Wed, 22 Jul 2009 19:37:56 -0700
I have a defunct Ten-Tec Titan power transformer with an A-480 core. I would like to get it re-wound for an 8877 amplifier. 2900 to 3000 VAC at 800 ma CCS. I would really like to not send the core. I
/archives//html/Amps/2009-07/msg00296.html (6,847 bytes)

128. Re: [Amps] inexpensive HV fuse (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Thu, 23 Jul 2009 10:57:25 -0700
The ones shown on the Surplus Sales site are very reasonably priced! And the are nice and small too. 73 Jim W7RY -- _______________________________________________ Amps mailing list Amps@contesting.c
/archives//html/Amps/2009-07/msg00312.html (13,546 bytes)

129. [Amps] Fw: Dummy Load "Oil" (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Wed, 29 Jul 2009 17:22:41 -0700
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-07/msg00375.html (10,115 bytes)

130. [Amps] Alpha 76PA Plate Current (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Thu, 30 Jul 2009 20:03:02 -0700
I have acquired an Alpha 76PA with 3 8874 tubes. I get 1500 watts output with 75 watts drive but the plate idling current in the SSB position is almost 400 mA. At 1500 watts out, the meter is against
/archives//html/Amps/2009-07/msg00423.html (7,592 bytes)

131. Re: [Amps] Alpha 76PA Plate Current (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Thu, 30 Jul 2009 20:51:02 -0700
FYI The zero signal plate current with 2000 volts on a 8874 is 22ma per tube. The Alpha would have 66 ma of idle current. Jim W7RY -- _______________________________________________ Amps mailing list
/archives//html/Amps/2009-07/msg00425.html (10,013 bytes)

132. Re: [Amps] Alpha 76PA Plate Current (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sat, 1 Aug 2009 09:50:11 -0700
Here is what I have found on the Alpha 76PA metering. The 5.1 volt zener was bad so the tubes had no bias. After replacing the diode, I put my Fluke meter in series with the plate supply to the tubes
/archives//html/Amps/2009-08/msg00006.html (8,588 bytes)

133. Re: [Amps] Alpha 374A ? (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 2 Aug 2009 14:25:09 -0700
Ask away! Jim W7RY -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-08/msg00028.html (7,743 bytes)

134. Re: [Amps] SB-200 6 meter conversion (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 9 Aug 2009 11:43:54 -0700
I think the SB200 needs more loading to decrease the grid current? 73 Jim W7RY -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mai
/archives//html/Amps/2009-08/msg00163.html (15,217 bytes)

135. Re: [Amps] 240V Outlet (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Fri, 14 Aug 2009 07:45:31 -0700
Are we talking 220 or 221 ??? 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-08/msg00320.html (7,716 bytes)

136. Re: [Amps] RF Choke At Amp Output ?? (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Fri, 21 Aug 2009 15:36:13 -0700
The only problem installing anything shorted (stub, antenna choke etc) on the output connector is that you arc the T/R relay when it goes into transmit mode! Why not just put a choke or 100K resistor
/archives//html/Amps/2009-08/msg00370.html (10,166 bytes)

137. Re: [Amps] TENTEC TITAN 425 price? (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Fri, 21 Aug 2009 15:39:31 -0700
It amazes me how many US amateurs want or need to use an amplifier on 30 meters when were allowed 150 watts on this band. 73 Jim W7RY -- _______________________________________________ Amps mailing l
/archives//html/Amps/2009-08/msg00371.html (9,115 bytes)

138. Re: [Amps] TENTEC TITAN 425 price? (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Fri, 21 Aug 2009 15:56:23 -0700
Ahhh well... I guess I missed that memo! :<) Thanks for the clarification Steve... 73 Jim W7RY -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.co
/archives//html/Amps/2009-08/msg00373.html (7,974 bytes)

139. Re: [Amps] why? (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Fri, 21 Aug 2009 15:59:01 -0700
Because RF and subsequent DC buildup on the tank (that we are talking about) only appears at the RF output connector when the T/R relay is engaged. Jim W7RY -- _______________________________________
/archives//html/Amps/2009-08/msg00374.html (7,307 bytes)

140. Re: [Amps] TENTEC TITAN 425 price? (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Fri, 21 Aug 2009 18:54:00 -0700
Carl... You forgot to mention the 1500 watt Ten-Tecs too! :) Jim W7RY -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/list
/archives//html/Amps/2009-08/msg00380.html (12,938 bytes)

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