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 small receiver uses CK722 transistors and was found in a documentation by Hugo Gernsback from...
Using this circuit the lamps glow in sequence in a speed given by the capacitors. The SCRs present a...
This circuit generates short pulses. The transistor can be a 2N2222 or BC548 and the frequency is given by...