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121. [Amps] Fiament watts (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 28 Aug 2010 21:10:35 -0500
Which of the 3K / 5K tubes have the LEAST filament watts ? Don WA4NPL _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinf
/archives//html/Amps/2010-08/msg00425.html (7,125 bytes)

122. [Amps] 833s and Sockets (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 30 Aug 2010 13:07:32 -0500
I have four with the "cool" looking sockets if anyone just has to have a unique 160 amp. Don WA4NPL _______________________________________________ Amps mailing list Amps@contesting.com http://lists
/archives//html/Amps/2010-08/msg00471.html (8,619 bytes)

123. [Amps] Metering Boards (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 05 Sep 2010 07:41:08 -0500
I think Windows XP hates me. Another drive bites the dust. ( sigh ) Oh well ,back to reloading all the useful stuff... Can anyone help with links to a metering flat panel for amps similar to Alpha or
/archives//html/Amps/2010-09/msg00016.html (7,974 bytes)

124. Re: [Amps] Metering Boards (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 05 Sep 2010 12:39:20 -0500
My thoughts exactly !! This drive has been suspect ... requiring several formats and re-installs. The SS drive sounds good. Don WA4NPL _______________________________________________ Amps mailing lis
/archives//html/Amps/2010-09/msg00020.html (8,264 bytes)

125. Re: [Amps] SHV connectors great, but where to find coax? (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 13 Sep 2010 16:07:10 -0500
I'd like to see you two in a good pie-fight. Don WA4NPL ( soon to retire my 46 year old call for a new one ) _______________________________________________ Amps mailing list Amps@contesting.com http
/archives//html/Amps/2010-09/msg00155.html (8,527 bytes)

126. Re: [Amps] SHV connectors great, but where to find coax? (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 14 Sep 2010 06:27:43 -0500
Right on Dave !! I am at more risk driving to work every day. Don WA4NPL _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/lis
/archives//html/Amps/2010-09/msg00163.html (10,168 bytes)

127. Re: [Amps] Sourcing Sheet Aluminum (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 15 Sep 2010 02:51:14 -0500
It may be a Southern Thang, but most signs around here come with free 30-30 or 12 gauge buckshot holes. Don WA4NPL _______________________________________________ Amps mailing list Amps@contesting.co
/archives//html/Amps/2010-09/msg00182.html (7,099 bytes)

128. Re: [Amps] 6146 or 2E26 modulator info (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 21 Sep 2010 05:33:07 -0500
I once plate modulated a Johnson 6N2 with a 100 watt Sony solid state amp just as you describe. I didn't have an ideal turns ratio, but could modulate it to around 90% before it flattened out. Don W
/archives//html/Amps/2010-09/msg00239.html (7,841 bytes)

129. Re: [Amps] Pulse tuning (score: 1)
Author: donroden@hiwaay.net
Date: Thu, 23 Sep 2010 03:57:11 -0500
If you have to pulse, you are relying too much on power supply capacitors. Just build it "large" and don't worry about pulsing. Don WA4NPL _______________________________________________ Amps mailing
/archives//html/Amps/2010-09/msg00272.html (7,626 bytes)

130. [Amps] VARIACS (score: 1)
Author: donroden@hiwaay.net
Date: Thu, 23 Sep 2010 09:44:27 -0500
I have several POWERSTAT single phase variable autotransformers 120vac in / 0-140vac out @ 15 amps or 2.1 KVA . They are motor driven by a SLO-SYN synchronous stepper motor with adjustable upper and
/archives//html/Amps/2010-09/msg00281.html (8,343 bytes)

131. Re: [Amps] Pulse tuning (score: 1)
Author: donroden@hiwaay.net
Date: Fri, 24 Sep 2010 07:34:41 -0500
The fallacy of the whole "pulse tuning" theory is that most amateurs are looking at an analog meter ( averaging ) when they should be looking at an oscilloscope ( peak-reading ) and tuning for the mo
/archives//html/Amps/2010-09/msg00303.html (8,225 bytes)

132. Re: [Amps] Why are 833s so Expensive (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 27 Sep 2010 08:53:44 -0500
But why are the wickets sticky, and why would someone want to take a sticky wicket ? A clean wicket would be my preference. Don WA4NPL _______________________________________________ Amps mailing lis
/archives//html/Amps/2010-09/msg00323.html (8,860 bytes)

133. Re: [Amps] Which LDG Autotuner for Amp Input? (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 10 Oct 2010 20:05:34 -0500
I'm pretty sure the coax becomes radio actve. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-10/msg00169.html (9,120 bytes)

134. Re: [Amps] cathode driven 4CX tubes. (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 13 Oct 2010 08:40:31 -0500
In the early 70s, I built a "look-alike" 30L-1 out of a gray Bud Box and I used four 4CX250Bs in GG. 100 ohm resistor on G1 to ground, G2 strapped to ground. 2300 volts resting / 1800-1900 @ .9A for
/archives//html/Amps/2010-10/msg00224.html (7,798 bytes)

135. Re: [Amps] AL-1200 debug at a distance: we might have a winner (W5GHZ) (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 19 Oct 2010 08:41:09 -0500
An open bias zener would put full bias on the tube and there would be no plate or cathode current. A shorted zener would result in *LOTS* of plate current. A good zener will produce a specific bias v
/archives//html/Amps/2010-10/msg00297.html (14,093 bytes)

136. Re: [Amps] AL-811H Question (score: 1)
Author: donroden@hiwaay.net
Date: Fri, 22 Oct 2010 17:28:54 -0500
For sure .... you have lost the magic smoke. Covers off. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/
/archives//html/Amps/2010-10/msg00354.html (6,931 bytes)

137. [Amps] Bird 4381 Power Analyst (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 26 Oct 2010 17:05:51 -0500
Need schematic for a Bird 4381 watt meter. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-10/msg00391.html (9,047 bytes)

138. [Amps] Pin 1 (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 27 Oct 2010 14:56:38 -0500
XLR pin designations George Washington Bridge. 1 2 3 G W B ground white black shield "+hot" "- hot" ( for phasing multiple mikes ) At least that's the way it was before problems happened. Don W4DNR _
/archives//html/Amps/2010-10/msg00420.html (9,022 bytes)

139. Re: [Amps] Low Input SWR Amps Networks (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 03 Nov 2010 13:30:51 -0500
Please explain to the choir why the two aren't necessarly the same. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman
/archives//html/Amps/2010-11/msg00020.html (7,517 bytes)

140. Re: [Amps] our amplifier in 2010 CQWW (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 09 Nov 2010 08:27:26 -0600
Be Afraid ............. be VERY Afraid Hsu !!! No direct QSLs for you. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mail
/archives//html/Amps/2010-11/msg00079.html (9,133 bytes)

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