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
On January 8, 2017 3:02:38 PM GMT+02:00, gudguyham@aol.com wrote:
>
>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
>contests. However if used for high voltage switching on occasional
>use, it could last a long time.
>Sent from AOL Mobile Mail
>
>
>-----Original Message-----
>From: Vic Rosenthal <k2vco.vic@gmail.com>
>To: amps <amps@contesting.com>
>Sent: Sun, Jan 8, 2017 01:34 AM
>Subject: [Amps] Diagnosing relay problem
>
>
>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 here: <a
>href="https://www.mgs4u.com/RF-Microwave/RFrelays_misc.htm";
>target="_blank">https://www.mgs4u.com/RF-Microwave/RFrelays_misc.htm</a>)
>in the input. The problem is that I would like to determine which relay
>is responsible before taking it apart!
>I can't think of a way, and am considering replacing both of them. Does
>anyone have an idea?
>Also, has anyone experience with the HG d'Italia relays? I wonder if
>this was such a good choice. It is fast enough, but I wonder about its
>lifespan.
>
>Vic 4X6GP
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