LA3ZA Radio and Electronics

The Elecraft K2 is quite a small transceiver, made for portable use. Therefore it has fewer indicators of status than many other transceiver...

I started by making a very simple modification for a low level audio output with level that was independent of the AF pot setting. T...

This is a circuit that builds on KR5L’s zero-beat indicator circuit. He suggested trying a CMOS version of the 567 instead of the standard b...