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181. Re: [Amps] ACVFD (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 04 Jul 2011 20:21:09 -0500
Alum Creek Volunteer Fire Department Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2011-07/msg00046.html (6,808 bytes)

182. Re: [Amps] RF in the Audio (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 25 Sep 2011 20:41:22 -0500
( and other dispariging comments ) On the other hand, I find our resident Senior Statesman's inputs to be "real-world-correct". Don W4DNR _______________________________________________ Amps mailing
/archives//html/Amps/2011-09/msg00217.html (9,147 bytes)

183. Re: [Amps] HIGHWAY LOUIE (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 22 Nov 2011 14:14:14 -0600
Quoting TexasRF@aol.com: Woops !! Did that one night when I was low on gas, giving out counties on 75 meters.....pulled under the canopy and a shower of glass accentuated by small explosions followed
/archives//html/Amps/2011-11/msg00112.html (8,139 bytes)

184. Re: [Amps] Estimating CCS, I CAS, Plate Dissipation by Eyeball 4-400As (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 23 Nov 2011 20:53:47 -0600
Class A ( modulators running less than 50% efficiency ) With zero modulation, they are going to always show some color Full modulation they will get bright. Class C ( RF amps in AM service ) running
/archives//html/Amps/2011-11/msg00123.html (8,332 bytes)

185. Re: [Amps] Can distilled water be used for a dummy load ?? (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 30 Nov 2011 09:46:07 -0600
Altronics and other Broadcast loads immerse the resistor IN the fluid ( 50/50 distilled and glycol ) . The fluid flows through the hollow resistor and returns over the outer surface allowing the most
/archives//html/Amps/2011-12/msg00001.html (7,910 bytes)

186. Re: [Amps] Replacing 3-500Z tubes with 4-400A tubes (score: 1)
Author: donroden@hiwaay.net
Date: Thu, 08 Dec 2011 16:26:02 -0600
4-400s will work in an SB 200 , but you cant slide it back in its case. ( tube checker only !!! HV EXPOSED !! ) Don W4DNR _______________________________________________ Amps mailing list Amps@contes
/archives//html/Amps/2011-12/msg00073.html (13,609 bytes)

187. Re: [Amps] Replacing 3-500Z tubes with 4-400A tubes (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 10 Dec 2011 17:15:33 -0600
Fingers slipped... meant SB-220 instead of SB-200. ( but you alreay knew that ... right ?? ) Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lis
/archives//html/Amps/2011-12/msg00088.html (15,783 bytes)

188. Re: [Amps] Fwd: Linear Amplifier Tuning---PROPERLY! (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 21 Dec 2011 06:55:42 -0600
Isn't it true that if you re-peak the tuning control, then the loading is no longer "over-coupled" ? Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com ht
/archives//html/Amps/2011-12/msg00170.html (8,063 bytes)

189. Re: [Amps] Anti-Corona Paint (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 27 Dec 2011 21:44:30 -0600
Good block sealer for hi-po engines. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2011-12/msg00242.html (7,795 bytes)

190. Re: [Amps] IMD (score: 1)
Author: donroden@hiwaay.net
Date: Fri, 30 Dec 2011 09:59:38 -0600
I disagree. If the RF chain is clean, audio chain distortion will only be heard as audio distorton on the main channel. Don W4DNR _______________________________________________ Amps mailing list Amp
/archives//html/Amps/2011-12/msg00282.html (7,648 bytes)

191. Re: [Amps] 4CX1000A (score: 1)
Author: donroden@hiwaay.net
Date: Fri, 27 Jan 2012 15:58:23 -0600
A bleeder resistor to ground at the tube screen connection should help. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mai
/archives//html/Amps/2012-01/msg00218.html (9,957 bytes)

192. Re: [Amps] 4CX1000A (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 28 Jan 2012 18:35:20 -0600
Ahhhhh parallel / series OB2 s Them wuz the days........ Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/a
/archives//html/Amps/2012-01/msg00238.html (9,469 bytes)

193. Re: [Amps] 4CX1000A (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 28 Jan 2012 19:12:43 -0600
Good ole amp ..... slightly ( ahem ) heavy need a sturdy desk. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/list
/archives//html/Amps/2012-01/msg00241.html (10,094 bytes)

194. Re: [Amps] 4CX1000A screen current (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 29 Jan 2012 10:03:30 -0600
Back in the day, we used a 100ma meter movement for screen current, and set the bleeder resistor for center scale ( 50ma ). Between the vr tubes and the socket/bleeder. Don W4DNR ____________________
/archives//html/Amps/2012-01/msg00259.html (9,683 bytes)

195. [Amps] Speaking of Burle (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 29 Jan 2012 19:06:04 -0600
Speaking of Burle, does anyone need a Burle 9017 tetrode wrapped in a 570Mhz 1KW out transmitter ? Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http
/archives//html/Amps/2012-01/msg00279.html (8,369 bytes)

196. Re: [Amps] Speaking of Burle (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 30 Jan 2012 21:35:18 -0600
This baby has a 200+ pound 4000 volt power transformer single phase six taps on primary / two terminals on HV side. probably 500-600 Ma continuous. North Alabama Don W4DNR Quoting donroden@hiwaay.net
/archives//html/Amps/2012-01/msg00305.html (8,532 bytes)

197. Re: [Amps] Speaking of Burle (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 31 Jan 2012 16:03:51 -0600
It was closer to 300 pounds when we weighed it at the recyclers. Don W4DNR Quoting donroden@hiwaay.net: _______________________________________________ Amps mailing list Amps@contesting.com http://li
/archives//html/Amps/2012-01/msg00308.html (8,430 bytes)

198. Re: [Amps] HD HF amplifier recommendations (score: 1)
Author: donroden@hiwaay.net
Date: Fri, 10 Feb 2012 10:26:08 -0600
And the Bugatti won't haul the soccer team around like a minivan. ( purpose-built monoband amp vs multi-band amp ) Horses for Courses. Don W4DNR ps..... does anyone remember the chrome plated "Brown
/archives//html/Amps/2012-02/msg00088.html (7,612 bytes)

199. Re: [Amps] Guidelines.....toroids for tank ckts (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 28 Mar 2012 14:50:18 -0500
More antenna than "amps" , but what about a 4:1 bal-un for 20/15/10 meters ? What would be a good design that would be rated maybe three times more than required for 1500 pep out ? ( I don't want to
/archives//html/Amps/2012-03/msg00315.html (8,620 bytes)

200. Re: [Amps] FWD: Ham Radio Amp - $8500 (Louisville Ky) 3CX10000-a7 (score: 1)
Author: donroden@hiwaay.net
Date: Thu, 05 Apr 2012 15:41:04 -0500
A pair of 4-1000A's is not enough either ............... Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/a
/archives//html/Amps/2012-04/msg00065.html (8,642 bytes)

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