This circuit was found in a 1980s documentation. The diodes may be general purpose diodes such as 1N34 or 1N60 and the indicator may be the lowest current range of a multimeter.
Intended for amplifying analog video signals, this old documentation circuit has a 20 MHz pass...
This crystal-controlled oscillator was found in the January 1994 issue of Electronics Now. Other...
Found in General Electric documentation from the 1980s, this circuit generates signals that depend...