Thanks for the help in this solution. That was exactly the problem. I have
disconnected my Ameritron Model ARB-704 from the KPA500 and substituted it
with a homemade connector using the remote connector pins 2 & 4. Before this
TS-2000 was pushed into duty as the replacement for the ailing K3, it was
being used as a MARS station connected to Collins 30L1 amp which exhibits a
high negative voltage (-120VCD) for the keying circuit, hence the Ameritron.
Jerry's world is now at peace!
Best regards,
Jerry, W1IE
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