Re: [Elecraft] [K2] Diode types for connecting both paddle & straight key

Thanks for your comments, Sverre and Mike.  Yes, I believe I have had RF-induced odd keying problems (with a transverter/amp on 144 MHz at about 100-300 W out, the key being around 5m from the antenna, but not in the main beam).  They seemed to respond to moving cables around, putting ferrite ch

Re: [Elecraft] [K2] Diode types for connecting both paddle & straight key

Steve, Virtually any diodes should work in this setting. If you have volts of RF on your straight key/paddle/computer keying lines, the change to a conventional silicon diode with its slightly higher offset voltage won't give you any freedom from false triggering. Are you experiencing RF feedback

Re: [Elecraft] [K2] Diode types for connecting both paddle & straight key

It is an advantage to use a Shottky diode for the auto-detect circuit and not a standard silicon diode. I've given the arguments for that here: Reliable auto-detect for keyer for Elecraft K2 - Sverre, LA3ZA K2 #

[Elecraft] [K2] Diode types for connecting both paddle & straight key

I'm replacing a dead diode in my paddle/key combiner box.  Does it matter at all what types of diodes I use ?  I am thinking maybe I should use something less prone to RF pickup (say 1N4001 or similar) rather than the HP 5082-2835's (small signal schottkys) I had there originally.   73, Steve VE