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Old 15th Apr 2021, 8:21 pm   #4
Sparky67
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Join Date: Feb 2008
Location: Great Barr, Sandwell, West Midlands, UK.
Posts: 583
Default Re: Plessey PRS2282A BPF-Change Issue

Just noticed in my first post I said the added diodes were across the relay driver devices. They aren't, they are across the caps.

I had to replace a couple of the relays in this as the contacts had gone high resistance, no difference. So will try some DC wetting and a number of coil operations for a while and see what the result of that is. Thanks for the thought. I may also remove one of the capacitors and leave the reverse diode in, see if that makes a difference. The steady reduction in the click level when a relay is operated seveal times in quick succession does have a capacitor feel about it...!

This is a really impressive HF Rx and has a much better operator feel to it than the Racal RA1792 which I have used in the past, and which is probably the same class and era. Would be good to get it running without the annoying clicking!

Cheers,

Martin
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