This circuit can be used to power 6, 9 or 12 V devices in your car. The maximum current is 1.5 A. The circuit is from a 1983 Electronics Hobbyist Handbook.
This circuit was found in documentation from 1977. Its purpose is to diode-switch the frequency of a VFO....
This circuit is from a 1974 Ferranti transistor manual. The circuit is analog, and the components used...
Found in a 90s Popular Electronics, this circuit generates high voltage for radiation detecting...