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21. [Amps] RG-174 (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Thu, 04 Apr 2002 07:46:18 -0500; Thanks to everyone who responded so quickly, and in particular for the on-line references. Looks like it is more than good enough. 73, Pete N4ZR Check out the World HF Contest Station Database at www; /archives//html/Amps/2002-04/msg00148.html (6,229 bytes)
22. [Amps] al-1500 (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 05 Apr 2002 22:40:55 -0500; Easy, guys.... from the SMIRK web page: 5766 W4WRL Wayne R. Lewis Sr smirk5766@aol.com FM04; /archives//html/Amps/2002-04/msg00205.html (7,242 bytes)
23. [Amps] al-1500 (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 05 Apr 2002 22:47:32 -0500; By the way, as I just demonstrated, it's darned easy with some e-mail software to delete your sig (maybe including callsign) by mistake. 73, Pete N4ZR; /archives//html/Amps/2002-04/msg00206.html (7,585 bytes)
24. [Amps] powerline capacitors (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 12 Apr 2002 12:49:28 -0400; Because I've been fighting powerline noise, I've become much more aware of the details of what's up there. One thing that I notice at intervals on 3-phase 34.5 KV lines around here is banks of capaci; /archives//html/Amps/2002-04/msg00321.html (6,853 bytes)
25. [Amps] Interesting new amplifier manufacturer (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sat, 13 Apr 2002 08:23:15 -0400; Check out http://www.i4kly.com 73, Pete N4ZR Check out the World HF Contest Station Database at www.pvrc.org; /archives//html/Amps/2002-04/msg00339.html (6,540 bytes)
26. [Amps] Odd SB-220 behavior -- help needed (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 15 Apr 2002 15:53:36 -0400; Yesterday, I cleaned up the input relay wiring on my SB-220. It has been modified to use a small Hi-G d'Italia vacuum relay for the input, and a Kilovac HC-1 for the output. Initially, when I did thi; /archives//html/Amps/2002-04/msg00367.html (9,485 bytes)
27. [Amps] al-1200 question (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 08 Mar 2002 07:37:49 -0500; Well, yes, but in most cases at HF the added receiving gain is not really useful, because your ability to hear is limited by signal-to-noise ratio, not path loss, and the extra gain will just bring u; /archives//html/Amps/2002-03/msg00156.html (8,631 bytes)
28. [Amps] amp vs antenna (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 08 Mar 2002 12:20:30 -0500; because both). Only if the noise that sets the noise floor in your area is truly coming from all azimuths and elevations. Point that more-directive antenna into a cell of thunderstorms on the way to; /archives//html/Amps/2002-03/msg00171.html (9,110 bytes)
29. [Amps] Re: [CQ-Contest] Italian power explained - (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 11 Mar 2002 09:21:18 -0500; It looks as if the Italians aren't the only ones -- check this JA example out, further down on the same page: http://i5uxj-2.cln.it/amp/schemi/aag/aag.html It's really quite beautifully built. I was; /archives//html/Amps/2002-03/msg00230.html (7,877 bytes)
30. [Amps] Phonetics (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Thu, 14 Mar 2002 14:59:56 -0500; station. Sometimes I cannot understand the call sign of a strong station. I figure half the problem is at my end and the other half is at the transmitting end. Repeats do not seem to help. So I say 7; /archives//html/Amps/2002-03/msg00327.html (7,483 bytes)
31. [Amps] SB-220 for WARC bands (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Thu, 21 Mar 2002 21:20:43 -0500; No mods required. Use 15M position for 17M and 10M position for 12M. 73, Pete N4ZR Check out the World HF Contest Station Database at www.pvrc.org; /archives//html/Amps/2002-03/msg00491.html (7,255 bytes)
32. [Amps] Dentron GLA 1000 (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 22 Mar 2002 08:00:58 -0500; There's an interesting piece of business school theory I've read about that holds that in an auction, the winning bidder will almost always pay an amount that the vast majority of other bidders think; /archives//html/Amps/2002-03/msg00498.html (7,605 bytes)
33. [Amps] SB-220 metering (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 22 Mar 2002 16:56:04 -0500; My SB-220 has quietly, undramatically lost relative power and HV metering. The grid metering function still works fine on the same meter, and I'll be darned if I can see anything burned, or any commo; /archives//html/Amps/2002-03/msg00510.html (6,693 bytes)
34. [Amps] SB-220 metering PS (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 22 Mar 2002 17:34:55 -0500; I forgot to mention that the meter switch appears to be fine. Curiouser and curiouser. 73, Pete N4ZR Check out the World HF Contest Station Database at www.pvrc.org; /archives//html/Amps/2002-03/msg00512.html (6,216 bytes)
35. [Amps] SB-220 WARC bands (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 25 Mar 2002 07:59:20 -0500; Seems like this has been discussed a few times, but .... The SB-220 is capable of far more than that -- 1 KW input was the *legal* limit in those days. Driven with 100-110 watts, an SB-220 will/shoul; /archives//html/Amps/2002-03/msg00567.html (7,990 bytes)
36. [AMPS] Alpha 78 (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sat, 23 Feb 2002 11:59:31 -0500; Why not consider a 3CX1200 for conversions like this? I believe the cost would be less, only one socket, only one chimney, instant-on and a robust grid. Takes more driving power, I know. Is the anode; /archives//html/Amps/2002-02/msg00243.html (7,852 bytes)
37. [Amps] Re-subscribe ?? (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 25 Feb 2002 21:58:51 -0500; This is just from the switchover to the mailman list software 73, Pete N4ZR Check out the World HF Contest Station Database at www.pvrc.org; /archives//html/Amps/2002-02/msg00282.html (7,516 bytes)
38. [AMPS] Air Variables Needed (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 17 Dec 2001 13:15:45 -0500; I'm in need of a couple of 250-400 pf maximum air variables with at least a 1500 volt rating for a 160m shunt feed. A couple of the plate tuning capacitors from an SB-220, L-4 or comparable amp would; /archives//html/Amps/2001-12/msg00297.html (6,712 bytes)
39. [AMPS] Air Variables (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 24 Dec 2001 14:16:10 -0500; A couple of weeks ago I inquired about sources of transmitting air variables. A reflector member put me on to Henry Radio, which is surplusing a number of 500 pf air variables from old amp lines. I b; /archives//html/Amps/2001-12/msg00472.html (6,955 bytes)
40. [AMPS] Comedy break (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Wed, 28 Nov 2001 09:55:55 -0500; Check out www.qsl.net/la6fja/ts2000.html for a writeup on the new Kenwood TL-933 solid-state HF + 6M amplifier. There's some serious info here, but it will require some creativity, because the Englis; /archives//html/Amps/2001-11/msg00457.html (7,504 bytes)

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