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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Diagnosing\s+relay\s+problem\s*$/: 6 ]

Total 6 documents matching your query.

1. [Amps] Diagnosing relay problem (score: 1)
Author: Vic Rosenthal <k2vco.vic@gmail.com>
Date: Sun, 8 Jan 2017 08:34:57 +0200
I have recently been suffering from intermittent attenuation of RX signals through my amplifier, which has a vacuum relay (Jennings RJ1-A) in the output and a HG d'Italia relay from max gain (see her
/archives//html/Amps/2017-01/msg00164.html (7,377 bytes)

2. Re: [Amps] Diagnosing relay problem (score: 1)
Author: gudguyham--- via Amps <amps@contesting.com>
Date: Sun, 8 Jan 2017 08:02:38 -0500
Vic, when you consider the number of cycles the life span is on any type of vacuum relay, that life span can easily be chewed up in relatively short order if used for high speed QSK during several co
/archives//html/Amps/2017-01/msg00169.html (9,100 bytes)

3. Re: [Amps] Diagnosing relay problem (score: 1)
Author: Ron Youvan <ka4inm@gmail.com>
Date: Sun, 8 Jan 2017 09:00:15 -0500
I have recently been suffering from intermittent attenuation of RX signals through my amplifier, which has a vacuum relay (Jennings RJ1-A) in the output and a HG d'Italia relay from max gain (see he
/archives//html/Amps/2017-01/msg00172.html (8,339 bytes)

4. Re: [Amps] Diagnosing relay problem (score: 1)
Author: Steve Thompson <g8gsq72@gmail.com>
Date: Sun, 8 Jan 2017 16:10:23 +0000
If there's enough cable length between the relays in the rx path, a TDR might do it. I feel sure there should be a way using a capacitance meter, but I haven't stopped to figure out how yet. Steve I
/archives//html/Amps/2017-01/msg00181.html (8,379 bytes)

5. Re: [Amps] Diagnosing relay problem (score: 1)
Author: Vic Rosenthal <k2vco.vic@gmail.com>
Date: Sun, 08 Jan 2017 18:45:33 +0200
I'm not a big contester, but I do use QSK often. The vacuum relay should be good for 2,000,000 operations. The relays have been in place for about 4.5 years. -- Vic 4X6GP ____________________________
/archives//html/Amps/2017-01/msg00182.html (9,924 bytes)

6. Re: [Amps] Diagnosing relay problem (score: 1)
Author: Vic Rosenthal 4X6GP <k2vco.vic@gmail.com>
Date: Mon, 9 Jan 2017 00:14:09 +0200
I took it apart and tested the relays individually with an ohmmeter. The HI-G d'Italia relay was the problem, as several of you suggested. I replaced it, cursing the engineers that had made it so har
/archives//html/Amps/2017-01/msg00192.html (9,995 bytes)


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