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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Varistor Modulator (CB21915E)
Taken from a 1956 Raytheon transistor manual, this circuit uses varistors to obtain modulation of a signal...
Two-phase motor drive (CB20792E)
This circuit was found in a Motorola documentation from the 70s. The integrated circuit is from...
Negative Voltage Generator with the 555 (CB12324E)
This configuration can be found in other articles on this site. This was obtained in 1998...