Found in an American 1980s documentation, this circuit generates high-intensity pulses for a high-voltage laser. The circuit produces 200 to 300 V pulses for excitation of a gas laser.
This circuit for VCR recording heads was found in the February 1990 issue of Radio Electronics magazine....
This very simple continuity tester uses a small 1.5 V lamp (type used in flashlights). Can be...
This commercial radio with 3 earphone listening transistors was manufactured in Japan in the...