[Amps] Diagnosing relay problem

[Vic Rosenthal 4X6GP]

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 hard to do, until 
I remembered that I was the "engineer" responsible for it. Checked 
everything for continuity and relay operation and it seemed OK, so I 
buttoned it all up again.

But I forgot to check for shorts to ground. So tomorrow morning I'll 
have to take it apart again and find what I screwed up. Not tonight.

73,
Vic, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/

On 8 Jan 2017 18:10, Steve Thompson wrote:
> 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 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:
>> https://www.mgs4u.com/RF-Microwave/RFrelays_misc.htm) 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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