| 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
Happy Holidays
Check out the World HF Contest Station Database at
 www.pvrc.org/wcsd/wcsdsearch.htm
 
 
 
 _______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps 
 |