[Elecraft] [K3] Need +12V on TX

[Wes Stewart]

I added a solid-state relay driver in my old Drake L4-B that requires +12V (or so) from the transceiver on transmit.  My trusty TS-870 supplies this signal.  

I'm getting tired of running QRP with the K3 and would like to be able to use the amp with my K3 without further fuss.  Is there a magic way to get this signal from the K3 or am I going to be forced to mod the amp again, kluge another circuit in-line, or forget the idea and stick with the '870?

Wes  N7WS