Found in a 1967 General Electric SCR manual, this circuit uses a neon lamp to produce opposing SCR clocks. The transformer is of the commercial type of the time.
This circuit generates 50, 100 and 200 Hz signals from a 2.2768 MHz TV crystal. The circuit can be...
This small power amplifier makes use of an output transformer given its design time. In fact, the...
This resistance meter with the CA3130 was found in an English publication from 1977. The circuit has...