[Elecraft] K3 Two amplifiers 1 key line

[AD6XY - Mike]

I see several suggestions already, mostly involving building circuits. That
is fine if you wish but you could also just connect together the key lines,
using diodes to isolate them from one another, and making sure you respect
the current and voltage ratings of the key line. Both amps will of course
key but most amplifiers have an off switch or standby facility and unless
you are using 6m and HF at the same time it is probably easier just to
disable the unused amplifier.

Mike



Lee (WW2DX) wrote:
> 
> I have a HF amp on ANT1 and (soon to be) 6M amp on ANT2. ANT2 is  
> dedicated 6M antenna.
> 
> Has anyone come up with a way to PTT each amp when on desired band? Is  
> it possible to just hook both AMPS to the same PTT key line so both  
> amps  Key at the same time but the RF path would then take over?
> 
> Thanks,
> 
> Lee
> WW2DX
> K3 #464
> 
> 
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