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1. Re: [Amps] Eimac AS newsletters (score: 1): Author: N7KA@comcast.net; Date: Fri, 31 Jul 2009 00:37:17 +0000 (UTC); YES. Its the QST September 1971 article. Arne N7KA Does anyone have a copy of EIMAC AS-45? ( design and construction techniques for linear amplifiers using the 8877 ) I have all except this one N8D; /archives//html/Amps/2009-07/msg00417.html (7,312 bytes)
2. [Amps] Radio Switch/Multi-Tech (score: 1): Author: N7KA@comcast.net; Date: Fri, 24 Apr 2009 14:13:30 +0000 (UTC); What are the SUCCESSFUL techniques for removing the pin in the rotor of these switches? IF YOU HAVE SUCCESSFULLY removed these pins I would like to know how it was done and what tools were used. I; /archives//html/Amps/2009-04/msg00311.html (7,203 bytes)
3. Re: [Amps] OT: Can someone ID this tube and its use ? (score: 1): Author: N7KA@comcast.net; Date: Wed, 1 Apr 2009 22:14:31 +0000 (UTC); It looks like some varia tion of a 4-1000A. The metal base ring appears to have oval vent holes, whereas the 4-400, 4-250, and 4-125 had round vent holes. Its not a 3-400Z, 3-500Z, or 3-1000 beca; /archives//html/Amps/2009-04/msg00018.html (9,407 bytes)
4. Re: [Amps] Ten Tec Titan II Blower Replacement? (score: 1): Author: N7KA@comcast.net; Date: Mon, 9 Feb 2009 03:24:51 +0000 (UTC); An approach that might work is to look in Yellow pages under Electric Motors, Repairs and Parts (or similar section) and see if there is a motor repait shop anywhere near you. I know someone that wa; /archives//html/Amps/2009-02/msg00215.html (9,092 bytes)
5. [Amps] ALS-1300 (score: 1): Author: N7KA@comcast.net; Date: Sun, 8 Feb 2009 15:15:31 +0000 (UTC); To make it easy for folks: 1200W output (continuous they state) 1.5 to 22MHz. Not yet available. http://www.mfjenterprises.com/catalog/Pages_01_through_25.pdf Front page lower left corner _________; /archives//html/Amps/2009-02/msg00196.html (7,048 bytes)
6. Re: [Amps] SB-220 Drive Levels -FTFM (score: 1): Author: N7KA@comcast.net; Date: Fri, 23 Jan 2009 17:12:35 +0000; The manual on page 72 states .5 Amps, 2000V, and Ig of 100-200mA. This is with the SSB/CW switch is in the CW position (lower plate voltage) resulting in 1000W INPUT, the legal limit at the time the; /archives//html/Amps/2009-01/msg00271.html (8,183 bytes)
7. [Amps] HV Connector (score: 1): Author: N7KA@comcast.net; Date: Sun, 28 Dec 2008 07:57:33 +0000; MHV style available in polarized and standard mating. Voltage rating 5KVDC. GHV style available Voltage rating 25KVDC. Try www.deltaRF.com for info on both. Arne N7KA ________________________________; /archives//html/Amps/2008-12/msg00353.html (6,264 bytes)
8. Re: [Amps] Dud tubes rebuilders... (score: 1): Author: N7KA@comcast.net; Date: Tue, 09 Dec 2008 21:52:18 +0000; In that case use it as a paper weight or door stop to ham room. Maybe base for a lamp. Used to make lamps using TEKTRONIX scope CRTs (those with a flat screen). Arne N7KA ____________________________; /archives//html/Amps/2008-12/msg00179.html (7,961 bytes)
9. [Amps] L4B Keying (score: 1): Author: N7KA@comcast.net; Date: Thu, 13 Nov 2008 14:54:42 +0000; Does anyone know the open circuit voltage and current requirement for RY1 (the antenna relay) in the L4B. The schematic does not state this info. Arne N7KA ___________________________________________; /archives//html/Amps/2008-11/msg00150.html (6,259 bytes)
10. Re: [Amps] rotary switch - shorting/non-shorting (score: 1): Author: n7ka@comcast.net; Date: Fri, 31 Aug 2007 16:20:57 +0000; Peter and all. This has been MY understanding of a shorting (progressive) rotary switch. On smaller switches the contact bar on the rotor is continuous and progressively shorts contacts together as s; /archives//html/Amps/2007-08/msg00272.html (11,331 bytes)
11. Re: [Amps] Heat Dissapating 8877 HV Plate Caps (score: 1): Author: n7ka@comcast.net; Date: Sat, 25 Aug 2007 05:45:36 +0000; All those tubes you mention can be called bottles. Anodes inside a glass envelope. The cooling from these tubes involved air passing around the glass envelope. And yes they use a plate cap with horiz; /archives//html/Amps/2007-08/msg00171.html (13,049 bytes)
12. [Amps] WANTED Turns Counter (score: 1): Author: n7ka@comcast.net; Date: Sat, 07 Apr 2007 18:06:02 +0000; Looking for an E. F. Johnson Counter Dial Part Number 116-0209-001. Need 2ea minimum. If I can get more even MUCH better. State condition and price. PLEASE reply DIRECT to N7KA@comcast.net Also I hea; /archives//html/Amps/2007-04/msg00030.html (6,454 bytes)
13. Re: [Amps] GS-35B on 6M (score: 1): Author: N7KA@comcast.net; Date: Sat, 05 Aug 2006 04:58:28 +0000; The following was Larry, W7IUV'S question: What kind of gain can I reasonably expect from a GS-35B on 6 meters at anode voltages less then 4 KV? The info I have found on the web is sketchy and incons; /archives//html/Amps/2006-08/msg00169.html (7,249 bytes)
14. Re: [Amps] fiberglas tape (score: 1): Author: N7KA@comcast.net; Date: Tue, 13 Jun 2006 04:05:36 +0000; I purchased a roll from AMIDON thru CWS BYTEMARK (800-679-3184) in LA. http://www.bytemark.com Motor rewind shop in larger cities might have a source as well. It is white and NOT the typical so calle; /archives//html/Amps/2006-06/msg00267.html (8,313 bytes)
15. Re: [Amps] Johnson 154-3 variable breakdown voltage? (score: 1): Author: N7KA@comcast.net; Date: Sat, 10 Jun 2006 22:56:00 +0000; Johnson was picked up by Cardwell In CARDWELL catalog p/n 154-3-1 (Johnson p/n was 154-3) (single section): Peak withstanding voltage is 2000, 488-19pf. Its about 5 inches between front and rear moun; /archives//html/Amps/2006-06/msg00258.html (7,540 bytes)
16. [Amps] VOA Delano, CA (score: 1): Author: N7KA@comcast.net; Date: Sun, 21 May 2006 22:51:22 +0000; This probably belongs more on the tower-talk reflector. If going to Visalia DX convention, the VOA site at Delano, CA has an impressive array to towers and antennas. Delano is about 1/2 way between B; /archives//html/Amps/2006-05/msg00271.html (6,501 bytes)
17. [Amps] ALPHA 77 Relay K4 (score: 1): Author: N7KA@comcast.net; Date: Wed, 17 May 2006 03:31:06 +0000; Does anyone know of a sure source foir this MAGNECRAFT relay p/n W102RMX7 or a replacement? Even another relay and changes to PC board? Slow reply from ALPHA and other source so far nil. Thanks Arne; /archives//html/Amps/2006-05/msg00172.html (6,670 bytes)
18. [Amps] Amps at Visalia (score: 1): Author: N7KA@comcast.net; Date: Wed, 26 Apr 2006 03:34:10 +0000; The Elecraft amps looked nice. But consider the ALPHA 99B at $4250. Same pair of 4CX800 as the 91B but made in Colorado. 91B was if I remember $2400 or less. Everything going up so the Elecraft price; /archives//html/Amps/2006-04/msg00381.html (6,703 bytes)
19. [Amps] Riv-nuts installing (score: 1): Author: N7KA@comcast.net; Date: Sat, 08 Apr 2006 05:54:18 +0000; When installing a rivnut you do not want the rivnut to spin. The hand header I mentioned has a threaded end for the rivnut to be installed lets say 10-32. This threaded intothe rivnut, completely thr; /archives//html/Amps/2006-04/msg00108.html (7,196 bytes)
20. [Amps] Rivet nuts (score: 1): Author: N7KA@comcast.net; Date: Fri, 07 Apr 2006 04:29:30 +0000; There may be some confusion as to difference between a rivnut and a PEM nut. They are 2 different animals folks. PEM nut name is taken from an actual manufacturer of a type of nut pressed into the me; /archives//html/Amps/2006-04/msg00095.html (7,328 bytes)

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