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 is intended to trigger an alarm when the input voltage exceeds one value and to...
This circuit, found in a 1986 documentation, uses an optical sensor to count pulses and, in its...
This circuit was found in Delco documentation from 1966. The components are from that time....