This circuit, of a Popular Electronics of 1969 is destined to firing a gas LASER of the time. The circuit makes use of a high voltage transformer for triggering.
Found in a Radio Electronics from the 90s, this circuit generates a 1 kHz signal to serve as a...
This low noise circuit was obtained from a 1980s US RF publication. Transistors used are uncommon...
This circuit applies to other operational ones, other than the one indicated. The formulas next to the...