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221. Re: [Amps] transformers(SB220 power) (score: 1)
Author: Gudguyham@aol.com
Date: Sun, 16 Jul 2006 19:35:38 EDT
My SB-221 also does the same, about 1500watts PEP with 80 watts drive. I drive it with 60watts and the output is around 1300 watts or a little less depending on the band, just my observations. I thin
/archives//html/Amps/2006-07/msg00460.html (7,267 bytes)

222. Re: [Amps] Transformers (score: 1)
Author: Gudguyham@aol.com
Date: Sun, 16 Jul 2006 19:53:53 EDT
The way I figure it, that is 3200 watts at that point in time. 3200 peak W or 3200W PEP? I'd say 3200 W peak _______________________________________________ Amps mailing list Amps@contesting.com htt
/archives//html/Amps/2006-07/msg00462.html (7,617 bytes)

223. Re: [Amps] FW: Transformers (score: 1)
Author: Gudguyham@aol.com
Date: Sun, 16 Jul 2006 20:00:49 EDT
The crest of the envelope in that example is 400V. Since 400V peak equal 282V effective, PEP power is 1600W not 3200W. 73 Peter The measurement was made with a scope and the highest peak was singled
/archives//html/Amps/2006-07/msg00464.html (7,144 bytes)

224. [Amps] Peak power ratings (score: 1)
Author: Gudguyham@aol.com
Date: Sun, 16 Jul 2006 20:12:58 EDT
I have to laugh when the industry started to rate AC motors in PEAK POWER, like the wet/dry vac's and circular saws. Have you seen some of these numbers? A 5 pound circular saw with a 3HP peak motor.
/archives//html/Amps/2006-07/msg00465.html (6,536 bytes)

225. Re: [Amps] Transformers (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 06:40:55 EDT
Correct, but who uses that measuring stick? Rich, I don't know, but when I was working as a carpenters helper I always got the "dumb end" of that measuring stick. Lou ________________________________
/archives//html/Amps/2006-07/msg00490.html (7,683 bytes)

226. Re: [Amps] Peak power ratings (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 06:49:09 EDT
Yes, and they are based on 746w per HP with a locked-rotor. Rich, your are probably right about this, but I was giving the benefit of the doubt by saying "at start up" instead of a locked rotor condi
/archives//html/Amps/2006-07/msg00491.html (7,309 bytes)

227. Re: [Amps] Peak power ratings (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 06:49:56 EDT
Indeed, Lou. It's corporate ethics, the Achilles' heel of Democracies. This is what "Enron, the Smartest Guys in the Room" is all about. And eventually leads to death ________________________________
/archives//html/Amps/2006-07/msg00492.html (6,686 bytes)

228. Re: [Amps] FW: Transformers (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 06:55:03 EDT
As I recall, this definition sounds like the one I was taught in the 1968 ARRL license manual when I was studying for my extra. Lou _______________________________________________ Amps mailing list A
/archives//html/Amps/2006-07/msg00494.html (7,826 bytes)

229. Re: [Amps] transformers (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 07:27:07 EDT
I've never seen a pair of 3-500Z's driven with 100 watts produce 1500W PEP **on an accurate power meter** with only 3000V on the anode. It takes about 3400 volts or more to get 1500W out with 100W dr
/archives//html/Amps/2006-07/msg00496.html (8,995 bytes)

230. Re: [Amps] transformers (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 07:43:34 EDT
As for PEP. I always felt it was a marketing term. I agree, I am from the old school. Put a brick on the key Lou _______________________________________________ Amps mailing list Amps@contesting.com
/archives//html/Amps/2006-07/msg00500.html (7,526 bytes)

231. Re: [Amps] transformers (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 10:00:37 EDT
IME, in linear operation, with 3000vdc it takes c. 140w to drive a pair of 3-500Zs to full throttle. I will whole heartedly agree with that statement!! Lou ___________________________________________
/archives//html/Amps/2006-07/msg00512.html (7,945 bytes)

232. Re: [Amps] transformers (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 10:21:14 EDT
The above data is from the AL 80B. I wonder how they manage to measure their RF power output at 1 KW. There are others that seem to rate the output from the modern tube much the same way. I never que
/archives//html/Amps/2006-07/msg00515.html (9,661 bytes)

233. Re: [Amps] QRO membership revoked (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 18:39:41 EDT
Worst of all, if you don't expose your Amateur Radio License to regular doses of RF, it'll turn PINK. You really don't want to be the guy to show up with a pink license. The only prescription for PLS
/archives//html/Amps/2006-07/msg00547.html (8,322 bytes)

234. Re: [Amps] transformers (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 17 Jul 2006 18:55:15 EDT
I can get nearly 2.5kW PEP output measured on the VFD (predecessor to the WX0B PowerMaster) out of my Henry 3K-A with a pair of 3-500ZGs and almost 4kV on the anodes with 150W+ drive. Do I do that? N
/archives//html/Amps/2006-07/msg00548.html (8,211 bytes)

235. Re: [Amps] Amps Digest, Vol 43, Issue 70 (score: 1)
Author: Gudguyham@aol.com
Date: Tue, 18 Jul 2006 09:11:11 EDT
But for me amplifiers should be rated at there key down maximum, period. SSB can only be less total power, which results in good Ed K0KL I asked a few of the posters to tell me what their "key down"
/archives//html/Amps/2006-07/msg00564.html (6,903 bytes)

236. Re: [Amps] Amps Digest, Vol 43, Issue 70 (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 19 Jul 2006 06:43:14 EDT
In the 40's and 50's we used speed of the wiper blades to determine fuel efficiency. <grin> Those days if you wanted to run mobile power you needed a dynamotor in the trunk. :) 73, Keith NM5G Keith,
/archives//html/Amps/2006-07/msg00615.html (7,881 bytes)

237. Re: [Amps] Grid fuses (was: Life and gain of 3-500Z) (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 19 Jul 2006 15:47:20 EDT
That's news to me. In my experience, a fuse is one of the most reliable of all electronic components, especially when compared to the active devices in an electronic protection circuit. To each his o
/archives//html/Amps/2006-07/msg00647.html (6,895 bytes)

238. Re: [Amps] grid fuses (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 19 Jul 2006 18:43:59 EDT
73 de K5JV Lon W. Cottingham 1110 Golden Bear Ln. Kingwood, TX 77339 Lon, we won't punish you for all the political remarks. We'll let Leland kick your butt. Hi Hi :-) 73 lou ________________________
/archives//html/Amps/2006-07/msg00652.html (6,462 bytes)

239. Re: [Amps] Ameritron Amps (score: 1)
Author: Gudguyham@aol.com
Date: Sat, 29 Jul 2006 08:23:07 EDT
don't want to bash Ameritron but I have a friend who bought an AL-1200 and did have considerable problems with the electrolytic capacitor bank on the HV power supply. They did not have a good safety
/archives//html/Amps/2006-07/msg01278.html (8,467 bytes)

240. Re: [Amps] Ameritron Amps (score: 1)
Author: Gudguyham@aol.com
Date: Sat, 29 Jul 2006 08:26:44 EDT
My, I seem to have tweaked a sensitive spot with all you ameritron lovers(not capitalized on purpose). I can see where appliance operators would love them, just buy it, bring it home and plug it in.
/archives//html/Amps/2006-07/msg01279.html (8,356 bytes)


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