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Total 654 documents matching your query.

21. Re: [Amps] DVM recomendation (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Fri, 07 May 2004 22:55:36 -0400
Thanks to all for the recommendations on the meters. I found a fluke 87-3 on ebay at a decent price. I hope it works when I get it! I have a half dozen of the cheap meters around here but they all re
/archives//html/Amps/2004-05/msg00093.html (8,228 bytes)

22. [Amps] HP 141A spectrum analyzer plugin's (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sun, 09 May 2004 23:12:49 -0400
I have an old HP 141A spectrum analyzer. Similar to the 141T. Can someone tell me if I can plug in an 8553B RF unit? How about an 8555A RF unit? I know it is to be used with the 141T but will it work
/archives//html/Amps/2004-05/msg00106.html (7,201 bytes)

23. Re: [Amps] 6146B vs 6146W (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 17 May 2004 13:27:41 -0400
The 6146W has a ruggedized filament. The rest of the characteristics may be the same as a 6146A or a 6146B depending on when the 6146W was built. From what I have gathered the early 6146W was the sam
/archives//html/Amps/2004-05/msg00144.html (10,063 bytes)

24. Re: [Amps] RE: 4CX250B Screen Supplies (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sun, 25 Jul 2004 00:42:49 -0400
If you want to prove that a two tone signal really DOES vary the screen current (as well as plate current) try this: for your two tone generator use two tunable audio oscillators. Set one for 1 khz.
/archives//html/Amps/2004-07/msg00179.html (12,044 bytes)

25. Re: [Amps] Need Diagnostic help (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Tue, 17 Aug 2004 11:35:01 -0400
If you have an old house that has fuses rather than circuit breakers, look for corroded fuses. I have seen fuses get corroded and give intermittent problems even though they may be screwed in tight.
/archives//html/Amps/2004-08/msg00178.html (13,306 bytes)

26. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Wed, 25 Aug 2004 20:59:35 -0400
Not really so in either case. A 1200 watt pep out amp with 60% efficiency will have an input power of 2000 watts. That will burn 800 watts in heat with full carrier. That same amp with an AM signal a
/archives//html/Amps/2004-08/msg00320.html (12,465 bytes)

27. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Thu, 26 Aug 2004 20:01:22 -0400
The "carrier" that you hear on these signals is probably not carrier but inband IM products from the low frequency audio signals. Listen closely and you will see that it is only present with modulati
/archives//html/Amps/2004-08/msg00357.html (12,380 bytes)

28. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Thu, 26 Aug 2004 21:32:27 -0400
Hi Rob, The old QST article kind of uses voltage and power as one and the same in the discussion. He also fails to mention that the power "INPUT" to the amp also increases as well as the power out wi
/archives//html/Amps/2004-08/msg00367.html (16,222 bytes)

29. Re: [Amps] Audio BW, *WAS* Centurion cooling... (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Thu, 26 Aug 2004 21:34:22 -0400
Hi Joe, How would you then explain that this "phenomenon" is not heard or perceived as carrier on a normal SSB signal when tuning the signal lower in frequency than where the carrier is. This convert
/archives//html/Amps/2004-08/msg00368.html (14,388 bytes)

30. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Thu, 26 Aug 2004 21:40:09 -0400
Paul Christensen wrote: The "carrier" that you hear on these signals is probably not carrier but inband IM products from the low frequency audio signals. Listen closely and you will see that it is on
/archives//html/Amps/2004-08/msg00369.html (10,151 bytes)

31. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Thu, 26 Aug 2004 22:10:37 -0400
With independent sideband you can transmitt more data than you can with a bandwidth equal to the sum of the two. 73 Gary K4FMX -- Bill Fuqua <wlfuqu00@uky.edu> wrote: What I don't understand is the u
/archives//html/Amps/2004-08/msg00372.html (10,685 bytes)

32. Re: [Amps] OT: RF Speech Processor Kits - Final Final (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sun, 16 Jan 2005 13:33:58 -0500
Steve Thompson wrote: Ken G3WCS wrote: Thank you to everyone who contacted me both on and off list. Quite a lot of folk pointed me to audio clippers rather than RF Processors. Just for the informatio
/archives//html/Amps/2005-01/msg00307.html (10,126 bytes)

33. Re: [Amps] OT: RF Speech Processor Kits - Final Final (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sun, 16 Jan 2005 20:02:42 -0500
Steve Thompson wrote: Gary Schafer wrote: Steve Thompson wrote: Ken G3WCS wrote: Thank you to everyone who contacted me both on and off list. Quite a lot of folk pointed me to audio clippers rather t
/archives//html/Amps/2005-01/msg00313.html (13,619 bytes)

34. Re: [Amps] OT: RF Speech Processor Kits - Final Final (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 17 Jan 2005 11:19:46 -0500
Steve Thompson wrote: On Monday 17 January 2005 01:02, Gary Schafer wrote: Hi Steve, The output of an ssb transmitter is different than from a double side band transmitter. A double sideband transmit
/archives//html/Amps/2005-01/msg00320.html (11,085 bytes)

35. [Amps] Capacitors needed 2kv (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Sun, 06 Feb 2005 22:54:43 -0500
I am looking for some .01 mfd and .02 mfd @ 2kv ceramic radial lead capacitors. Looked in digikey and mouser and didn't see them there. Any suggestions on where to buy them? Thanks Gary K4FMX _______
/archives//html/Amps/2005-02/msg00214.html (6,501 bytes)

36. Re: [Amps] Quick 220 outlet? (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 07 Feb 2005 14:55:27 -0500
Well, Just be careful if you do use something like this. The problem is that the breakers are not ganged like they are on a real 220 circuit. With this thing one breaker can pop with an overload and
/archives//html/Amps/2005-02/msg00244.html (9,376 bytes)

37. Re: [Amps] Re: 0.01 @ 2 kv caps. (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 07 Feb 2005 15:00:08 -0500
Roy Koeppe wrote: Inquired, "I am looking for some .01 mfd and .02 mfd @ 2kv ceramic radial lead capacitors. Looked in digikey and mouser and didn't see them there. Any suggestions on where to buy th
/archives//html/Amps/2005-02/msg00247.html (8,092 bytes)

38. Re: [Amps] Quick 220 outlet? (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 07 Feb 2005 16:30:12 -0500
Phil Clements wrote: Look inside your distribution panel and you'll see that the breakers alternate between legs (which is also how/why 220V breakers work on two adjacent breaker locations). One diff
/archives//html/Amps/2005-02/msg00256.html (9,621 bytes)

39. Re: [Amps] Quick 220 outlet? (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 07 Feb 2005 19:34:32 -0500
Japerlick@aol.com wrote: Testing 110/220 with your fingers was standard practice for electrician school in the Army in the 1960's. My brother had to learn it while in the Army's TTY school. They prob
/archives//html/Amps/2005-02/msg00270.html (8,659 bytes)

40. Re: [Amps] Quick 220 outlet? (score: 1)
Author: Gary Schafer <garyschafer@comcast.net>
Date: Mon, 07 Feb 2005 22:22:03 -0500
Bill Turner wrote: On Mon, 07 Feb 2005 14:55:27 -0500, Gary Schafer wrote: The problem is that the breakers are not ganged like they are on a real 220 circuit. With this thing one breaker can pop wit
/archives//html/Amps/2005-02/msg00284.html (9,993 bytes)


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