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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100 gain amplifier with LM381 (CB25272E)
We found this high gain circuit with the LM381 preamplifier in a Radio Electronics from February 1990....
Pulse Generator 2 (CB18968E)
We can produce pulses controlled through this circuit that can function as a shield if powered by a...
Ultra Miniaturized FM Transmitter (CB14873E)
If mounted with SMD components, this transmitter will be so small that it can be installed inside a...