Integrated signal generator appeared in Radio Electronics magazine in January 1968. The integrated circuits are from the time and the generator produces signals from 5 Hz to 50 kHz.
This circuit is intended for charging 12 V Nicad batteries, which corresponds to 10 common...
This type of circuit, found in American documentation from the 1980s, triggers producing output...
This relay without lock uses a general-purpose transistor. The relay is according to the supply....