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50w QCX amp with grounded ptt (elecraft k2)


 

Hey all,
I suspect this has been asked and answered, but I cannot find it.

I have an elecraft k2 with an amp keyer jack that is an open drain output and is pulled to ground during transmit. I would like to add the QCX 50w amp. I understand what it required electrically, but I'm curious what the most practical way to connect the two would be. Is there a way to tap 5v off of the amp, so the keyer ckt can be passive?

I'd like to maintain QSK capabilities.

Thanks in advance,
Casey
KV3T

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