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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1 MHz XTAL Oscillator using the 7402 (CB787E)
This TTL oscillator can be used as clock in many applications. The output signal is square and the...
Stereo Headphones Amplifier (CB982E)
The circuit presented in the figure is an amplifier for stereo sources with the Maxim MAX9723...
General Purpose Preamplifier (CB4772E)
Circuits similar to this appear elsewhere in this section. The transistors can be BC549 (low...