This circuit was found in the December 1976 issue of Radio Electronics magazine. The circuit includes a powerful pulsating siren. It is activated by courtesy light switches and other sensors.
To fit the integrated circuit under test, we used an 8-pin DIL socket. Observe the fitting...
This receiver can be used to receive signals from the previous circuit transmitter. The circuit is...
This is the 1968 MR480 commercial cassette recorder circuit. The circuit was fully transistorized and...