This circuit was obtained in a 1967 General Electric documentation. It alternately fires two xenon lamps in a signaling system. Observe the high continuous supply voltage.
This commercial circuit is from a Japanese magazine from 1967. It uses germanium transistors, and...
This circuit can be used to drive relays, solenoids, motors and other loads according the...
This circuit is based on the small keychain that responded to the sound of a whistle and were...