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Total 418 documents matching your query.

121. Re: [Amps] Henry 2K Classic X (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Fri, 18 Mar 2005 08:12:36 -0800
The lugs on rotary switches often have sharp points. When wires or straps are cut, this can result in a sharp point. It's worth making sure that parts that will be at high potential are smooth. -- 73
/archives//html/Amps/2005-03/msg00396.html (7,795 bytes)

122. Re: [Amps] Transistor amps (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Tue, 29 Mar 2005 08:39:25 -0800
The notes don't discuss protective circuitry, if needed. You might want to protect it from high SWR, overdrive, high temperature, and overcurrent. Every time I talk to anyone 'in the business' about
/archives//html/Amps/2005-03/msg00687.html (9,442 bytes)

123. Re: [Amps] a common topic here tspa (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Tue, 05 Apr 2005 09:53:01 -0700
The handbooks describe procedures for checking if an amplifier is stable at VHF. If not, and this of course depends on the layout and components used and the parasitic tank circuits created thereby,
/archives//html/Amps/2005-04/msg00104.html (9,163 bytes)

124. Re: [Amps] ebay and amps (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Sun, 10 Apr 2005 19:51:40 -0700
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=48700&item=7507372436&rd=1&ssPageName=WDVW> Also it's worth noting that of the the 80 positive feedbacks this guy has, only 18 or them are from
/archives//html/Amps/2005-04/msg00206.html (7,221 bytes)

125. Re: [Amps] ebay and amps (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Mon, 11 Apr 2005 08:37:09 -0700
An obvious scam, documented over and over on various ham radio and other forums. I suspect that the ID that the guy is using is not his, but was obtained by 'phishing', since the description of the i
/archives//html/Amps/2005-04/msg00214.html (7,880 bytes)

126. [Amps] W8JI (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Tue, 19 Apr 2005 12:30:55 -0700
Does anyone have an email for W8JI other than w8ji@contesting.com? -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ Amps mailing list Amps@contesti
/archives//html/Amps/2005-04/msg00400.html (6,083 bytes)

127. Re: [Amps] Fwd:Re: More Rumors (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Thu, 21 Apr 2005 16:49:42 -0700
60%, 60V. Advanced Power Technology FETs. <http://www.advancedpower.com/> -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ Amps mailing list Amps@c
/archives//html/Amps/2005-04/msg00435.html (6,738 bytes)

128. Re: [Amps] Fwd:Re: More Rumors (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Fri, 22 Apr 2005 09:03:50 -0700
I'm sorry, but I don't remember. I also don't remember exactly which devices they are using. I should have paid more attention. I'm pretty sure I saw at least one splitter and combiner, so that would
/archives//html/Amps/2005-04/msg00449.html (8,300 bytes)

129. [Amps] FS: Alpha 86 linear amplifier (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Wed, 27 Apr 2005 20:28:23 -0700
I have for sale an Alpha 86 amplifier. This is a manually tuned 1500+ watt output amplifier using a pair of 3CX800A7s. It is in excellent electrical and cosmetic condition, putting out more than lega
/archives//html/Amps/2005-04/msg00591.html (6,985 bytes)

130. Re: [Amps] Hot Chasis Problem (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Fri, 29 Apr 2005 08:31:43 -0700
Here is what I suggest: 1) Completely disconnect the transformer. 2) Check all leads with with an ohmmeter to ground. 3) If the readings are not infinite, you have a problem. If they are, 4) Check al
/archives//html/Amps/2005-04/msg00617.html (7,892 bytes)

131. Re: [Amps] 3 or 4 wire 240v for amp (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Tue, 03 May 2005 22:17:43 -0700
The ground wire in the cord from the Drake should be checked to make sure it is actually grounded to the chassis. This wire should go to the copper ground wire. The white neutral is not used. You wou
/archives//html/Amps/2005-05/msg00038.html (7,973 bytes)

132. Re: [Amps] eBay (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Wed, 04 May 2005 08:58:35 -0700
It is very dangerous. If the current bid is $100, you do not know what the maximum bid of this person is. Suppose person A bids $99 maximum, and person B bids $9998 maximum. Then the current bid will
/archives//html/Amps/2005-05/msg00057.html (8,278 bytes)

133. [Amps] FS: Alpha 86 -- price reduced to $2200 (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Thu, 05 May 2005 16:47:08 -0700
I have for sale an Alpha 86 amplifier. This is a manually tuned 1500+ watt output amplifier using a pair of 3CX800A7s. It is in perfect electrical and cosmetic condition, putting out more than legal
/archives//html/Amps/2005-05/msg00091.html (6,941 bytes)

134. Re: [Amps] Gas Regulator Tubes (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Sun, 15 May 2005 14:08:05 -0700
In my opinion, they should definitely last longer, if, as you say, they are not abused. When I worked as a BC engineer we had lots of them that lasted for years of continuous service without problems
/archives//html/Amps/2005-05/msg00187.html (7,503 bytes)

135. Re: [Amps] ARF1505 (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Thu, 19 May 2005 10:33:41 -0700
Because it's one of the standard frequencies (the other is 13.56 MHz) for ISM devices like plasma generators. Not what you're thinking! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __________
/archives//html/Amps/2005-05/msg00210.html (6,649 bytes)

136. Re: [Amps] pi to pi-L o/p matching question (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Fri, 20 May 2005 11:16:22 -0700
Decreased. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2005-05/msg00212.html (7,049 bytes)

137. Re: [Amps] Alpha 86 (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Mon, 06 Jun 2005 15:33:02 -0700
I had an 86 for several years (just sold it). There was NEVER any problem with the PIN diodes, no blown fuses, and I always operate QSK CW. Same for the guy that had it before me. I understand that e
/archives//html/Amps/2005-06/msg00050.html (7,616 bytes)

138. Re: [Amps] Alpha 86 Prob (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Mon, 06 Jun 2005 20:24:02 -0700
I wonder if it has to do with exciters which tend to produce power spikes at the beginning of CW characters or syllables. That would explain why some have the problem and some don't. -- 73 Vic, K2VCO
/archives//html/Amps/2005-06/msg00052.html (6,861 bytes)

139. Re: [Amps] Alpha 86 Prob (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Mon, 06 Jun 2005 21:57:54 -0700
Is the antenna at DC ground? For example, the ICE protectors provide this. Of course, the amp probably has an RF choke across the output as is standard...mysterious. Maybe it's something that happens
/archives//html/Amps/2005-06/msg00054.html (7,204 bytes)

140. Re: [Amps] Kilovac HC-1 vacuum relay source (score: 1)
Author: Vic Rosenthal <vic@rakefet.com>
Date: Thu, 23 Jun 2005 08:25:34 -0700
I have read somewhere that the hc-1 is more durable, although the ratings are the same. On the other hand, I have used both of these in several amplifiers and the only one that I had which failed was
/archives//html/Amps/2005-06/msg00205.html (8,277 bytes)

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