On Sun,8/30/2015 7:32 AM, Larry wrote:
Measures (K6???) did a relay speed-up scheme for QSK on an SB220, I don't remember the details but it was something like hitting the relay with higher than usual coil voltage/current and it shortened up the relay pull-in time.
My neighbor, Bob Wolbert, K6XX, has worked for Elecraft for several years. Many years ago, he published a circuit like what you're describing. He credits it to Tony, K1KP.
http://www.k6xx.com/radio/fastrely.pdf http://www.k6xx.com/ikanrite.html#fastrely 73, Jim K9YC _________________ Topband Reflector Archives - http://www.contesting.com/_topband
