NE602 Crystal Oscillator (CB26005E)

This oscillator reaches 50 MHz with an overtone crystal. The circuit is from Electronics Now magazine from February 1997.

555 Tester (CB20887E)
To fit the integrated circuit under test, we used an 8-pin DIL socket. Observe the fitting...
Receiver via power grid (CB5068E)
This receiver can be used to receive signals from the previous circuit transmitter. The circuit is...
Cassette Recorder MR480 (CB18496E)
This is the 1968 MR480 commercial cassette recorder circuit. The circuit was fully transistorized and...