Paul Christensen wrote: > I like the robust design of vacuum relays, but I also like the completely > silent switching offered by PIN diodes. The RJ-1 type of relay can also be completely silent if you mount it with a few drops of silicone seal or on a piece of soft rubber. Mount it directly to metal if you like to hear it click! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco