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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The operational Amplifier used in this circuit is uncommon today. However, the same circuit can be...
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This small blocking oscillator for approximately 1000 Hz was found in an American documentation from the...
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We found this circuit in a Radio & Electronics Constructor from November 1975. The magazine no longer...