Indicated for calibrating digital instruments and circuits, this circuit was found in the June 1982 issue of Radio Electronics magazine. The circuit is based on components that are still available.
This circuit is from a 1967 publication. It is possible to power a fluorescent lamp from a 12 V...
This circuit was found in old American documentation. Transistor is general purpose and coil rated...
With a strong positive feedback (via a 10 M resistor) we can get the trigger setting for the...