This circuit is from a Mallory 1968’s documentation. The integrated circuit is of the time and the transistor admits equivalents.
This old version of analogue switch was found in a 1969 documentation. Components of the time are...
This 80's circuit uses an audio amplifier to obtain a symmetrical source from a single source. The...
This circuit was obtained in an English publication of 1975. It is a regulator circuit for...