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Total 19 documents matching your query.

1. [Amps] MRF-428, matched quad, new/unused (score: 1)
Date: Tue, 23 Sep 2008 17:20:54 +0200 (CEST)
Dear list members, I have a matched quad of MRF-428 for sale, of course these are new and unused. I have a few matched pairs of equivalents for sale as well. Anyone interested? I am in DL, we may use
/archives//html/Amps/2008-09/msg00208.html (6,534 bytes)

2. [Amps] SGC Mini Lini - Your experience? (score: 1)
Date: Sun, 30 Nov 2008 21:41:46 +0100 (CET)
Dear list members, I am thinking to find a "Mini Lini" built by SGC. I appreciate the size, weight and even the monoband design fullfills my requirements. Anyway, I would like to know who owns such a
/archives//html/Amps/2008-12/msg00005.html (6,729 bytes)

3. [Amps] spare coils for Jennings vacuum relays (score: 1)
Date: Sun, 22 Feb 2009 14:30:38 +0100 (CET)
Dear List Members, I have a few actuator coils for Jennings vacuum relays for sale. These coils will fit into relays like RB7A-26N, RB3-26N, RE6B-26S, RJ8A-26, RJ8H-26, RJ10H-26S and RS8-26S, just to
/archives//html/Amps/2009-02/msg00659.html (7,097 bytes)

4. Re: [Amps] russian door knob caps for R Ftank circuit (score: 1)
Date: Thu, 7 May 2009 21:17:52 +0200 (CEST)
Hi, I underline the experience of Bill with mine: I have used the 470pF / 15kV / 40kVAr version and the 330pF / 15kV / 30kVAr type for matching shortwave broadband antennas in applications for up to
/archives//html/Amps/2009-05/msg00058.html (10,033 bytes)

5. [Amps] 4C65 low loss ferrite - BIG toroids (score: 1)
Date: Thu, 7 May 2009 21:30:01 +0200 (CEST)
Hi, from a professional application I have a few ferrite toroids left which we used to build BIG BalUns and UnUns for up to 5kWcw RF-power and an acceptable load-VSWR of up to 3:1. We have built tran
/archives//html/Amps/2009-05/msg00059.html (8,394 bytes)

6. [Amps] RF Reed Relays for QSK (score: 1)
Date: Wed, 27 May 2009 01:07:30 +0200 (CEST)
Hi, I have a few RF-Reed-relays in my stock which I do not need. They have the following specs: max. voltage: 10kV max current @ 30MHz: 5A continous capacity between contacts: 0.5pF capacity contact-
/archives//html/Amps/2009-05/msg00205.html (7,497 bytes)

7. [Amps] RF-Reed-Relays to build a fast QSK-Switch (score: 1)
Date: Wed, 3 Jun 2009 21:44:14 +0200 (CEST)
Hi, I still have two RF-Reed-relays in my stock which I do not need. I kept these for a project with VERY fast QSK-switching in a QRO-application. They have the following specs: max. voltage: 10kV ma
/archives//html/Amps/2009-06/msg00015.html (7,814 bytes)

8. [Amps] Spark-Gaps (score: 1)
Date: Wed, 3 Jun 2009 22:17:37 +0200 (CEST)
Hi, I have disassembled a lot of professional RF-gear built by Collins Radio and I have selected and assorted all parts into categories. Finally I have found that I have quite a lot of electrodes com
/archives//html/Amps/2009-06/msg00016.html (6,906 bytes)

9. [Amps] finding a good blower in Europe? (score: 1)
Date: Wed, 23 Sep 2009 09:34:25 +0200 (CEST)
Hi Ulf, you may place and mount the starting capacitor in the mains supply compartment or wherever you have enough space. A few feet of cable should do no harm at 50Hz. You may even shield this cable
/archives//html/Amps/2009-09/msg00276.html (7,730 bytes)

10. [Amps] Professional 1kWcw QSK-T/R-Switch (score: 1)
Date: Thu, 1 Oct 2009 23:30:07 +0200 (CEST)
Hi, I have two professional T/R-switches for sale. I took these from Rohde & Schwarz 1kWcw linear HF power amplifiers. They are housed in small metal boxes with some 16 x 8 x 4cm size. They have thre
/archives//html/Amps/2009-10/msg00058.html (7,329 bytes)

11. [Amps] {Collins} 30S-1 - rectifier tube for sale? (score: 1)
Date: Wed, 21 Oct 2009 21:26:52 +0200 (CEST)
Dear List Members, I have an unused 3B28 rectifier tube standing in an unused ceramic socket. As far as I know this tubes is suitable to be used in a Collins 30S1. Here is my question: Is this correc
/archives//html/Amps/2009-10/msg00291.html (7,358 bytes)

12. Re: [Amps] Turns Counter (score: 1)
Date: Sun, 1 Nov 2009 21:02:29 +0100 (CET)
Hi, I have a few turns counters left which were manufactured by (or for?) Collins Radio. At least they carry a Collins Part No. and they look very similar to the knobs we all know from Collins gear l
/archives//html/Amps/2009-11/msg00080.html (7,050 bytes)

13. Re: [Amps] Why people don't build amps. (score: 1)
Date: Thu, 25 Mar 2010 22:27:36 +0100 (CET)
Dear Roger, the industry of ham radio gear placed such a weird perfectionism in our brain that we find a home brewed linear amp which has not all knobs symmetrical arranged and in one line is UGLY! W
/archives//html/Amps/2010-03/msg00652.html (9,976 bytes)

14. [Amps] Rohde & Schwarz 500Wcontinous HF-PA modules (score: 1)
Date: Tue, 31 Aug 2010 17:43:53 +0200 (CEST)
Dear list members, I have three HF-amplifier modules for sale which come from Rohde & Schwarz 1kW transmitters. Each of these delivers 500Wcw of continous (24h@365d) RF-power. These three are complet
/archives//html/Amps/2010-09/msg00014.html (8,015 bytes)

15. [Amps] GIANT 5kW Roller Coil for Sale (score: 1)
Date: Mon, 3 Oct 2011 17:45:57 +0200 (CEST)
Hi, I have a really BIG roller coil for sale (or trade). I took it from a mobile communications jammer transmitter of the russian forces.It was able to produce 5kWcw. The roller coil has a balanced c
/archives//html/Amps/2011-10/msg00008.html (7,737 bytes)

16. [Amps] Spare Coils for Jennings Vacuum Relays (score: 1)
Date: Mon, 14 Nov 2011 19:26:31 +0100 (CET)
Hi, from my job I have a bunch of spare magnectic coils left which come from Jennings vacuum relays like RB-4, RB-3 or RB-7. If these relays have a failure, seldom the contacts AND the coil are defec
/archives//html/Amps/2011-11/msg00063.html (8,247 bytes)

17. [Amps] connecting parts for vacuum relays w. Tungsten contacts (score: 1)
Date: Mon, 14 Nov 2011 19:39:37 +0100 (CET)
Hi, several vacuum relays have contact pins made from Tungsten, for example the elder glass types RB-3 and RB-7 from Jennings or compareable types from Kilovac. You can't solder on the short Tungsten
/archives//html/Amps/2011-11/msg00065.html (7,673 bytes)

18. Re: [Amps] Can distilled water be used for a dummy load ?? (score: 1)
Date: Tue, 29 Nov 2011 20:30:54 +0100 (CET)
Dear Jim, pure water will take metal ions of all metal surfaces it come in contact with, to build a solution, so it will corrode metal! I have repaired professional dummy loads a few years ago: I do
/archives//html/Amps/2011-11/msg00174.html (11,439 bytes)

19. Re: [Amps] Can distilled water be used for a dummy load ?? (score: 1)
Date: Wed, 30 Nov 2011 17:49:33 +0100 (CET)
Kanthal-Globar or Cesiwid sells such professional water(-stream) cooled rf-loads... 73 de Andy DH5AK _______________________________________________ Amps mailing list http://lists
/archives//html/Amps/2011-12/msg00002.html (13,304 bytes)

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