[Amps] Vacuum relays in Dentron MLA-2500
Pete Smith
n4zr at contesting.com
Fri Dec 26 21:50:18 EST 2003
At 02:28 PM 12/26/03 -0800, Vic Rosenthal wrote:
>See <http://www.somis.org/QSK922.html>, Rich Measures' article on vacuum
>relay QSK. He uses a reed relay for the input and an RJ1A or HC-1 vacuum
>relay for the output. I have used a similar circuit in at least three
>amplifiers so far, and it is ABSOLUTELY SILENT if you follow his advice to
>use silicon rubber to mount it and thin pieces of copper foil to make the
>leads. Foil works better than braid, becasue the braid wicks solder and
>ends up rigid.
Well, I'm perplexed. My braid connections are not rigid, I used a small
vacuum relay for the input side, and absolutely silent is never a term I'd
use. Maybe I could have done something different, but it's hard to know
what....
73, Pete N4ZR
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