K6JCA

We've just set up a 10 Meter Beacon! At the moment, the equipment consists of a Radio Shack HTX-100 running 20 watts into an inverted-...

In a previous posting ( here ) I discussed using Linear Technology's SPICE program ( LTSpice IV ) to perform Monte Carlo and Worst Case ...

SPICE is a handy tool for evaluating circuits without having to first breadboard them, and through its "directives," i...

Finally, a new QSL card: (My design. Printed by KB3IFH ).

[21 Feb 2015 Update:  for an improved design, please see this newer post:  Improved Antenna Launcher .] I need to get wire-antenna support...

In a previous post I detailed my experiences in modifying a Heathkit HR-10B receiver. Although performance improved, I've never been ...

This exciter replaces the Johnson Ranger that I'd originally used to drive my 813 AM Transmitter (described here , here , and here ). It...