[Elecraft] PTT IN K3S

K4PI.Mike Greenway K4PI at BELLSOUTH.NET
Thu Jul 3 11:42:50 EDT 2025


Wanted to check before tearing the K3S apart.  PTT IN on the back panel 
does not work. When I ohm it shows totally open with power off.  Good K3 
has resistance reading and 5 V present when powered.  PTT works on the 
front Mic jack and also via the 15 pin ACC plug.  This is a used radio I 
obtained.  Acts like the line is not even wired internally but wanted to 
double check that there is not anything that can inhibit that jack.  
Personally I think it is disconnected somewhere inside the radio.  Mike K4PI


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