[Elecraft] Turning off Amp PTT when using Tune Button

[Dave G4AON]

I think the only way is to use an external switch in the amplifier
keying line, or switching the amplifier to standby.

73 Dave, G4AON
K3/100 #80, Acom 1000
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Is there a way to turn off the ptt signal to an amp when the TUNE button
is pushed?

I want to run high power but I want to disable the amp while tuning an
external antenna tuner.

Thanks

Rich - N5ZC