FET switch with PTT and alarm inputs
A FET switch to work together with the Arduino PWR / SWR meter and controllable by the PTT is published here. The FET is a […]
Electrical construction
Modification of the HP DPS-700CB A
These HP power supplies come from the server market and are able to produce a nice 65 amps at 12V. Point is that the 12V […]
Solid State Amplifier Protection Circuit
Presented here is a article published at the 2010 EME conference describing a Solid State Amplifier Protection circuit. It incorporates 4 current protection circuits, overdrive, […]
Simple Rotor schematic for AC motors
After 25 years my dish needed a new control box for the rotators, the old one was rather worn out. I kept the same AC […]