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Total 20 documents matching your query.

1. [AMPS] stripline amp question (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Fri, 14 Jul 2000 03:17:21 -0500
Hi I am playing with a stripline design for 432 mhz using a gs35b. My main question is how much stray c should I allow for when calculating the stripline length? Mark -- en24gp 6m through 1296, BBQ r
/archives//html/Amps/2000-07/msg00078.html (6,531 bytes)

2. [AMPS] fs 2m and 432 legal limit rf decks (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Thu, 22 Jun 2000 22:40:09 -0500
Hi I have a matching pair of legal limit amps for sale for 2 meters and 70cm. They were built by n4pz and use the 4cx1600u tetrode. Both amps include blowers, metering for plate, screen, and grid cur
/archives//html/Amps/2000-06/msg00344.html (6,822 bytes)

3. SV: SV: [AMPS] " Kein Rauch ohne Feuer ...." (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Mon, 26 Jun 2000 04:12:49 -0500
Please, I just resubscribed and am back in the middle of another personal battle that doesn't belong on a reflector. I get some good info here when I stay subscribed but the personal sniping is to mu
/archives//html/Amps/2000-06/msg00401.html (16,428 bytes)

4. [AMPS] fs:2 meter and 432 mhz 1.5kw+ amps (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Tue, 16 May 2000 20:17:06 -0500
Hi I have a pair of matching amps for sale. Both run the 4cx1600u/gs23b tetrode. The amps were built by n4pz and have filament and grid bias, plate, grid and screen current meters. No B+ (3-3.5kv) or
/archives//html/Amps/2000-05/msg00174.html (7,083 bytes)

5. [AMPS] EMTRON DX-1 (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Wed, 17 May 2000 19:50:34 -0500
You are looking at 20-29cfm, the range is 25c to 50c input temp. Mark -- en24gp 6m through 1296, BBQ rules, icq 41823284 -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contes
/archives//html/Amps/2000-05/msg00197.html (7,703 bytes)

6. [AMPS] specs on Hammarlund cap (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Fri, 19 May 2000 16:45:30 -0500
Hi Still digging in the junkbox trying to find a tune cap for a 6m amp I am working on. I have a Hammarlund t-7660443-1 cap that I need the min/max capacitance values. Thanks Mark -- en24gp 6m throug
/archives//html/Amps/2000-05/msg00244.html (6,707 bytes)

7. [AMPS] FS:amp parts (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Fri, 19 May 2000 16:51:11 -0500
Hi I have a new toroidal filament (5 volts @ 40 amps) grid and screen supply transformer for sale. It is about 6 inches in dia. abt 2 inches tall and weighs 8 lbs. I have $150 in it. Make an offer or
/archives//html/Amps/2000-05/msg00245.html (6,861 bytes)

8. [AMPS] fs: pair of 4-400 pulls, filament xfrmr, and 4-100pf 5kv vac variable (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Mon, 02 Aug 1999 01:43:05 +0100
Hi All I have a pair of 4-400 pulls w/sockets, a NEW toroidal filament/grid/screen supply transformer and a 4-100pf 5kv vac variable for sale. $250 shipped. Mark -- en24gp 6m through 1296, BBQ rules,
/archives//html/Amps/1999-08/msg00013.html (6,981 bytes)

9. [AMPS] fs:pair 4-400's, sockets, xfrmr and vac vairiable (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Fri, 16 Jul 1999 01:55:21 +0100
Hi all I have a pair of 4-400 pulls, sockets, 4-100pf 5kv vac vairiable and a NEW 5v @40amp, 115vac @ .25amp, and 550vac @.25 amp transformer for sale. Transformer is toroidal, approx 6 inches od, 2.
/archives//html/Amps/1999-07/msg00313.html (6,929 bytes)

10. [AMPS] Kind of an ad (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Fri, 16 Jul 1999 03:10:35 +0100
Hi All I have seen posts (and helped some) of people looking for pc boards for out of production amps. I can recreate artwork and photo develop and etch replacement boards. Cost will depend upon the
/archives//html/Amps/1999-07/msg00317.html (6,845 bytes)

11. [AMPS] electrolytics (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Mon, 01 Feb 1999 14:01:45 -0600
Hi All I am resoring a Johnson Thunderbolt II for someone & need to replace the electroltics. My closest parts source is Digi Key. Are the panasonic tshb capacitors suitable for the HV filter stack?
/archives//html/Amps/1999-02/msg00036.html (6,721 bytes)

12. [AMPS] textbook on stripline amp design (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Thu, 18 Feb 1999 11:46:51 -0600
Hi All Can anyone point me towards a good textbook on stripline amp design. Thanks Mark -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests:
/archives//html/Amps/1999-02/msg00473.html (6,675 bytes)

13. [AMPS] 3-500Z filament voltage (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Sun, 31 Jan 1999 22:49:38 -0600
Hi All Complaints to Northern States Power about line voltage running high (currently 124volts, was 128 earlier) got the comment that it is more efficient & we aren't going to adjust it down. Light b
/archives//html/Amps/1999-01/msg00006.html (10,760 bytes)

14. [AMPS] CW, the ARRL and QST (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Tue, 26 Jan 1999 23:28:40 -0600
Hi All From the standpoint of a tech+ (yes I passed the 5 wpm exam after letting my license expire, went in cold & passed, came back no problem) the higher class licensees who sneer at us "poor" tech
/archives//html/Amps/1999-01/msg00445.html (10,916 bytes)

15. [AMPS] 6m amp pair of 4-400a's (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Thu, 03 Dec 1998 19:29:22 -0600
Hi All Can anybody suggest a construction article for a 6m amp using a pair of 4-400a's. I just came into the possion of a home brew 20-10m amp with a pair & want to rebuild it into a 6m amp. Thanks
/archives//html/Amps/1998-12/msg00039.html (6,836 bytes)

16. [AMPS] EF Johnson part id (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Fri, 11 Dec 1998 12:34:16 -0600
Hi All I have an EF Johnson air variable part # 153-509. Does anybody have an old catalog or whatever that would have the value of this cap? Thanks Mark -- FAQ on WWW: http://www.contesting.com/ampfa
/archives//html/Amps/1998-12/msg00195.html (6,692 bytes)

17. [AMPS] Capacitor id (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Fri, 11 Dec 1998 19:55:41 -0600
Thanks all for the identification on the capacitor, it turns out to be a 17-72pf at 7kv dual section. Anybody need this beast? I am in search of a 4-11pf 5kv capacitor (the 11pf is not an absolute bu
/archives//html/Amps/1998-12/msg00200.html (6,761 bytes)

18. [AMPS] toroidal hv transformers (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Wed, 16 Dec 1998 11:24:49 -0600
Hi All Is there a source for toroidal high voltage transformers in the US? I like the light weight compared to other styles of transformer. Thanks Mark -- FAQ on WWW: http://www.contesting.com/ampfaq
/archives//html/Amps/1998-12/msg00241.html (6,601 bytes)

19. [AMPS] need capacitor (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Thu, 31 Dec 1998 16:56:30 -0600
Hi All I am in need of a 3-60pf (the high end isn't critical, can be more) 5kv variable capacitor. Air or vacuum would be fine. Anybody have one or a source for one? Thanks Mark -- FAQ on WWW: http:/
/archives//html/Amps/1998-12/msg00528.html (6,615 bytes)

20. [AMPS] connectors (score: 1)
Author: kb0pyo@rconnect.com (Mark Brown)
Date: Tue, 20 Oct 1998 22:45:24 -0500
Hi all There are many N connectors in use on 432 eme systems running 1500 watts out on a 50% duty cycle around the world. I am running 300+ watts through some ldf4-50 n's on 1296mhz with no problems.
/archives//html/Amps/1998-10/msg00320.html (9,322 bytes)


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