This old version of analogue switch was found in a 1969 documentation. Components of the time are used, with emphasis on the CAG7 integrated circuit. It is worth as a reference.
This circuit was found in the National Semiconductor's Linear Applications of 1978. The circuit uses...
Indicated for checking the operation of small FM transmitters, this circuit was found in an...
We found this circuit in Radio Electronics magazine from September 1959. The circuit has different...