Found in a 1967 documentation, this infrared amplifier is intended for use in a Nipkow disc camera controlling a motor.
This limit alarm was found in a 1980s US documentation. Comparators can be equivalent and the...
I found this circuit in a doc umentation from the year 1968. It uses germanium transistor and has...
This timer has a divider programmed by BCD switches. The circuit is from a Radio Electronics...