This circuit for antiparallel control of thyristors was found in a Philips publication from 1967. The circuit uses components of the time, and the power components must be mounted on heat sinks.
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...