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21. Re: [Amps] AMERITRON AL-80A (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Fri, 14 Nov 2003 23:13:51 -0800
_________________________________________________________ It is essentially the same as my Heath SB-1000, a fine amp. It can be run at 1kw on SSB and CW, but for RTTY or other carrier-type mode, hold
/archives//html/Amps/2003-11/msg00185.html (7,532 bytes)

22. Re: [Amps] Benefits of 3-phase power? (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Sun, 16 Nov 2003 09:14:29 -0800
_________________________________________________________ There are three other advantages: 1. A DC supply is easier to filter, requires less C. 2. Motors run much smoother because total current neve
/archives//html/Amps/2003-11/msg00217.html (8,027 bytes)

23. Re: [Amps] Benefits of 3-phase power? (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Mon, 17 Nov 2003 07:49:57 -0800
_________________________________________________________ "Surprising that it's working at all"? Could you please explain that? I've worked with both two and three phase for years, and while I see th
/archives//html/Amps/2003-11/msg00241.html (9,311 bytes)

24. Re: [Amps] Bleeder Resistor Qusetion (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Mon, 17 Nov 2003 07:56:06 -0800
_________________________________________________________ Even with a non-resonant choke filter, you can get some surprisingly high voltage spikes when the load varies suddenly. I once made a ~150 vo
/archives//html/Amps/2003-11/msg00242.html (7,514 bytes)

25. Re: [Amps] Benefits of 3-phase power? (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Tue, 18 Nov 2003 08:43:26 -0800
_________________________________________________________ Nearly all of the cross-country transmission lines in the US are three phase. Only when it gets down to the neighborhood level do they go to
/archives//html/Amps/2003-11/msg00261.html (9,736 bytes)

26. Re: [Amps] Benefits of 3-phase power? (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Thu, 20 Nov 2003 07:11:29 -0800
_________________________________________________________ How do they convert such high DC voltages to AC? Thyratrons or something similar? -- Bill, W6WRT ____________________________________________
/archives//html/Amps/2003-11/msg00299.html (8,684 bytes)

27. Re: [Amps] Benefits of 3-phase power? (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Thu, 20 Nov 2003 07:29:46 -0800
_________________________________________________________ Too bad they went with a relatively low frequency. 400 Hz is widely used in aircraft and has numerous advantages. In fact, if they would go t
/archives//html/Amps/2003-11/msg00300.html (9,143 bytes)

28. Re: [Amps] Benefits of 3-phase power? (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Sat, 22 Nov 2003 09:49:06 -0800
_________________________________________________________ That's my understanding too. Perhaps someday power will be generated in the local neighborhood and then higher frequencies will be practical.
/archives//html/Amps/2003-11/msg00325.html (9,311 bytes)

29. Re: [Amps] AL-1200 Questions (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Mon, 24 Nov 2003 08:32:05 -0800
_________________________________________________________ Can you explain the mechanism for this? I'm curious how gold particles could create a quasi-rectifier. -- Bill, W6WRT _______________________
/archives//html/Amps/2003-11/msg00359.html (7,443 bytes)

30. Re: [Amps] AL-800 (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Wed, 26 Nov 2003 22:43:01 -0800
On Wed, 26 Nov 2003 08:35:44 -1000, Lee Wical <leewical@lava.net> wrote: _________________________________________________________ 1KW peak on CW/SSB, about 600W on RTTY. -- Bill, W6WRT _____________
/archives//html/Amps/2003-11/msg00376.html (7,070 bytes)

31. Re: [Amps] 220V service for amplifier (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Sat, 06 Dec 2003 12:39:32 -0800
On Sat, 06 Dec 2003 08:18:37 -0500, Ed Briggs <edbriggs@optonline.net> wrote: _________________________________________________________ LOL! Made my day. -- Bill, W6WRT ______________________________
/archives//html/Amps/2003-12/msg00095.html (8,469 bytes)

32. Re: [Amps] series directly heated cathode out to 4 tubes (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Sun, 07 Dec 2003 02:42:22 -0800
On Sat, 6 Dec 2003 09:29:13 -0800, skipp isaham <nospam4me@juno.com> wrote: _________________________________________________________ It might be ok, but you need to do some checking first before you
/archives//html/Amps/2003-12/msg00106.html (8,643 bytes)

33. [Amps] Homebrew solid state amps? (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Thu, 11 Dec 2003 07:07:39 -0800
Just wondering what is the current state of the art for homebrewed high power solid state amplifiers? I don't see much discussion on the reflector. Are there any designs available for a 1.5 kw homebr
/archives//html/Amps/2003-12/msg00177.html (6,917 bytes)

34. Re: [Amps] Power-off tube cooling (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Sat, 17 Jan 2004 08:19:47 -0800
_________________________________________________________ Yes, but when power is removed (the original question) the 2000&ordm; immediately starts dropping too. The question is will it drop faster th
/archives//html/Amps/2004-01/msg00179.html (8,461 bytes)

35. Re: [Amps] HV SAFETY QUESTION (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Thu, 22 Jan 2004 04:38:00 -0800
_________________________________________________________ I'm not sure this method will give valid results. Years ago, I was told the human body is a highly variable resistance, and an electrical sho
/archives//html/Amps/2004-01/msg00227.html (8,373 bytes)

36. Re: [Amps] HV SAFETY QUESTION (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Sat, 24 Jan 2004 08:42:04 -0800
_________________________________________________________ It also helps to actually watch the HV meter during turn-on and turn-off. My attitude is anytime it says zero AND I haven't watched it decay
/archives//html/Amps/2004-01/msg00252.html (8,912 bytes)

37. Re: [Amps] #18 gauge wire (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Wed, 28 Jan 2004 08:57:38 -0800
_________________________________________________________ Bumper... that used to be part of a car, right? :-) -- Bill, W6WRT _______________________________________________ Amps mailing list Amps@con
/archives//html/Amps/2004-01/msg00322.html (7,124 bytes)

38. Re: [Amps] Horizontal or verticle? (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Wed, 28 Jan 2004 09:00:12 -0800
_________________________________________________________ Especially avoid UPS when union negotiations are on. Smash-O-Rama! -- Bill, W6WRT _______________________________________________ Amps mailin
/archives//html/Amps/2004-01/msg00323.html (8,619 bytes)

39. [Amps] Using autotuner in place of input network (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Mon, 09 Feb 2004 10:27:46 -0800
Just wondering something. Most recent transceivers contain a built-in autotuner. For a homebrewed amplifier, would this be sufficient to replace the input network in a cathode driven amp? I know a Q
/archives//html/Amps/2004-02/msg00056.html (7,119 bytes)

40. Re: [Amps] Using autotuner in place of input network (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Tue, 10 Feb 2004 08:44:53 -0800
_________________________________________________________ I don't have any Bill Orr handbooks and I've never seen it in my ARRL handbooks. Could you please give a short explanation of the problem? Th
/archives//html/Amps/2004-02/msg00065.html (7,649 bytes)

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