Charlie, how this could work after there is no way the TX Inh inputs to be pulled down?

73, Val LZ1VB

Roger:
Look at:

http://www.kkn.net/~n6tv/SimpleElecraftK3SO2RLockoutCircuit.pdf

I belive it's different than the one you described in your email. I've
used this one successfully.

73 charlie, k1xx

On 10/8/2016 12:59 PM, irdixon+lists wrote:
Hi All
I don't like re-inventing the wheel, so I'm looking for a design to copy! I'm looking for a circuit to interlock two K3 so they cannot transmit simultaneously. I am aware of the simple connection cross linking the PTT out and Inbibit input on the 15 pin connector. That does not meet
our needs as when both try to transmit - both are inhibited !!

TIA
Roger - G4BVY

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