The purpose of this circuit is to produce a quick discharge on a shorted battery to attempt its recovery. The diode must be high current and the transformer too.
This circuit was found in a March 1988 Radio Electronics. The voltage scale is set at R3. 19 LEDs...
The idea of this circuit found in a Radio Electronics from January 1966. The idea of the...
This circuit was found in a 1974 publication. It provides a tone indication of the temperature sensed by...