Re: [Elecraft] K4 Key Out spec

Though not in the K4 manuals, the K4 KEY OUT jack (an RCA phono connector) has the same specs as the K3 KEY OUT jack: capable of keying up to +200VDC @ 5A. The K4 uses the same MOSFET as the K3, an IRFI630 (see datasheet ). Note that the

[Elecraft] K4 Key Out spec

Hello I need the voltage and current ratings on the K4 Key Out interface. Have a home brew amp that might be exceeding the K4 switching device ratings. And I don't want to let the smoke out. Hi 73 Bob W1XP Choose to be