Found in a 90s Silicon Chip documentation, this circuit provides a current of 3 A and the voltages range from 0 to 20 V. The integrated circuit and the transistor must have heat sinks.
This simple standing waveform (ROE or SWR) meter is used to adjust antenna matching with...
This circuit measures the temperature through the voltage drop across a diode. The circuit was...
This circuit uses an unusual PLL, the 4046 CMOS. We found it in the October 1994 issue of...