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.
In the figure we have the way to activate a red LED that needs 1.7 V or even others with higher...
This circuit was obtained in a 1979 publication, but it can be assembled with the BD135 instead of the...
Found in Radio Electronics from the 90's, this circuit employs a 3140 operational amplifier, still...