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1. [Amps] Vacuum relays a question (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 22 Sep 2002 08:24:26 -0400
50 kw, sure, but maybe just for ssb. For plate modulated AM keep it down to 20kw -is the rule at my hamshack. :) The beauty is indeed the vacuum. And <rf-amps> is indeed the place for multiple apost
/archives//html/Amps/2002-09/msg00168.html (7,003 bytes)

2. [Amps] Question To the guru's (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 22 Sep 2002 10:32:12 -0400
A true guru would not tolerate any sidekicks... Bill K2AME ~~~
/archives//html/Amps/2002-09/msg00171.html (7,433 bytes)

3. [Amps] Tank tweaking (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 22 Sep 2002 10:42:29 -0400
Bill K2AME ~~~
/archives//html/Amps/2002-09/msg00173.html (8,062 bytes)

4. [Amps] 3-400Z vs. 4-400A (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Fri, 05 Jul 2002 16:44:45 -0400
So add some bias already. <g> -- wwd ~~~~~~~~~~~~~~~~~~`
/archives//html/Amps/2002-07/msg00073.html (8,296 bytes)

5. [Amps] 3-400Z vs. 4-400A (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sat, 06 Jul 2002 10:29:37 -0400
[grumble-grouse] . . . Oh, I see, a trivial task. -- wwd K2AME ~~~~~~~~~~~~
/archives//html/Amps/2002-07/msg00077.html (8,961 bytes)

6. [Amps] SB-200 power supply (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Tue, 16 Jul 2002 18:48:05 -0400
Why all the excitement? To save a buck per leg? Go for 5, or maybe 6. A '1 kv' diode should only ever see, what, 400v? And the 1N5408 is the next level up. Why push it? Bill K2AME ~~~~~
/archives//html/Amps/2002-07/msg00231.html (7,021 bytes)

7. [Amps] Nice big Plate transformer fs (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Wed, 17 Jul 2002 18:55:21 -0400
So the ct cannot float . . . Boring, cheezy xfmr. Not even 230vac. Sorry about the bad review, but what do you expect from GE anyway. <g> Bill -- -- wwd@netheaven.com K2AME -- ~~~~~~~
/archives//html/Amps/2002-07/msg00268.html (7,956 bytes)

8. [Amps] Rube Goldberg (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sat, 20 Jul 2002 11:24:27 -0400
This conclusion is a non-sequitor. The RG solution was to grab a common item and employ it more or less logically to solve one step in an convoluted chain of functions that posesses no overall coher
/archives//html/Amps/2002-07/msg00355.html (7,266 bytes)

9. [Amps] Nice big Plate transformer fs (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sat, 20 Jul 2002 12:05:56 -0400
AFAIK, the seller has not chimed in with any more data. My suggestion would be to leave it IN the microwave, remove the rotating platter, and build up a nice final of proper proportion. The digital i
/archives//html/Amps/2002-07/msg00356.html (8,424 bytes)

10. [Amps] toroid (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 21 Jul 2002 12:55:57 -0400
Thanks. Real amps don't have more than 2 tubes in parallel, <g> so no loss here. Collins made one too. Bill K2AME
/archives//html/Amps/2002-07/msg00381.html (7,380 bytes)

11. [Amps] Nice big Plate transformer fs (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 21 Jul 2002 13:07:55 -0400
Reading old tags is tough at best. Most likely they wimped out when they tried to stamp the dot after the 4 in the 4620kv. Depending upon its age this xfmr just may be bridgeable for the full 4.6kv o
/archives//html/Amps/2002-07/msg00382.html (8,277 bytes)

12. [Amps] Wanted (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Mon, 29 Jul 2002 12:03:41 -0400
So what you are saying is that the Oz society sprang from the Bronze Age fully-formed into the Age of Solid State? Bill K2AME
/archives//html/Amps/2002-07/msg00524.html (6,397 bytes)

13. [Amps] Magic Meter Shunts... (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Mon, 29 Jul 2002 12:36:18 -0400
For current just compare to a known good meter. They are in series, right? For voltage just compare to a known good meter. Use both series and parallel here. It is a do-it-yourself hootenanny! The a
/archives//html/Amps/2002-07/msg00525.html (7,650 bytes)

14. [Amps] The Great Equalizer (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Mon, 29 Jul 2002 12:39:33 -0400
Yeah, but not everyone can live directly on top of an Alpha-wave Geo-node. ~~
/archives//html/Amps/2002-07/msg00526.html (6,733 bytes)

15. [Amps] electrolytic strings- equalizing resistors?? (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 09 Jun 2002 16:08:58 -0400
A Mallory engineer back in the 1960's put a non-equalized electrolytic string in a published project with the admonition that such R/eq were folly since during failure-mode they actually worked agai
/archives//html/Amps/2002-06/msg00060.html (8,987 bytes)

16. [Amps] Solid state relay question (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 16 Jun 2002 09:30:55 -0400
That implies you have rf in the shack. Is this 'excessive' rf? May be time to unhook those caps temporarily and redo the rf distribution until the relays no longer kick out. FWIW. Bill K2AME
/archives//html/Amps/2002-06/msg00109.html (7,862 bytes)

17. [Amps] Re: Big HV Transformer for Sale (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 16 Jun 2002 09:45:23 -0400
Just 2800 volts? Frankly, it would be a whole lot more interesting if it were bridgeable to around 5kv. Is it a 1400-0-1400 xfmr or ?? The tap implies a ct, but can the ct float? I need 5kv. 8-) Bil
/archives//html/Amps/2002-06/msg00110.html (8,067 bytes)

18. [Amps] electrolytic strings- equalizing resistors?? (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sun, 16 Jun 2002 09:48:11 -0400
So maybe that is why he did not use them. <g> But we are not discussing the fool who leaves no margin, are we? Let's always have 3 extra electrolytics in our string, beyond what a normal, prudent rat
/archives//html/Amps/2002-06/msg00112.html (12,707 bytes)

19. [Amps] Re: Big HV Transformer for Sale (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sat, 22 Jun 2002 11:33:39 -0400
It would appear the original poster meant to say: 'plate-modulated' rather than 'phase-modulated'. Plate modulated Class-C is 'normal' AM configuration. But then one should not really run GS35B's in
/archives//html/Amps/2002-06/msg00189.html (9,946 bytes)

20. [Amps] re: CTI screen regulator, tubes vs solid state++ (score: 1)
Author: wwd@netheaven.com (wwd@netheaven.com)
Date: Sat, 22 Jun 2002 11:46:22 -0400
But unlike much [hollow/solid-state/analog/digital] emotionalism, any regulation issues such as these should be easily demo'd on a scope. Give me a good zener string anyday. Bill K2AME
/archives//html/Amps/2002-06/msg00190.html (7,273 bytes)


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