24 Hour Clock (CB6462E)

This circuit divides the grid 60 Hz frequency to obtain 20 Hz to drive mechanical watches used at the time. The circuit is from a 1970 CQ magazine.

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Driver Darlington (CB8957E)
This circuit was obtained in a 1960 documentation of General Electric. It is applied in the...
Outboard Motor Sound (CB11583E)
This circuit produces the sound of a motorcycle or an outboard motor. The frequency is adjusted in the...
DTMF decoder with the 567 (CB12675E)
Another application circuit for the NE567 is shown in the figure. It consists of a decoder for...