[Boatanchors] Cathode Keying Question

[Lee Buller]

I have a Knight T-50 and the VFO to go with it.  I am looking at making a TR switch that runs the VFO all the time while I key the T-50.

I am a little flummoxed (confused) as to what the current and voltage is going through the cathode key of the T-50.  Unkeyed - the manual says 120 volts.  Keyed - the manual says zero volts.  Of course the the current keyed would be around 110 ma.  So, what I am working with here is 120 V and 110 ma at the key handle.

Is my thinking right or am I off here?  Could a simple reed relay could handle these parameters?  The last time I did this was in 1965...and I used big old clunky relays.

Lee Buller - K0WA




In our day and age it seems that Common Sense is in short supply.  If you don't have any Common Sense - get some Common Sense and use it.  If you can't find any Common Sense, ask for help from somebody who has some Common Sense.  Is Common Sense divine?

Common Sense is the image of the Creator expressing revealed truth in my mind. -  J. Wolf