Automatic TV power off (CB5945E)

This 80's circuit turns off a TV or other appliance after a set time. The base is a 555 IC and the relay is according the supply.

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Unijunction Metronome (CB24147E)
Another of the many circuits of this type that we have in this section. This one was found in the...
High frequency VCO (CB20604E)
This circuit can generate signals up to 100 kHz. Found in documentation from the 1980s, it makes...
Ambient Light Monitor (CB24696E)
Recommended for automotive applications, this circuit was found in an April 1982 Radio Electronics...