This circuit was found in a Popular Electronics from the 80s. It is possible to control a relay from a video signal. The circuit was used in video recorders of the time.
This circuit is from an American 80's documentation. The integrated circuit is of the time and is no...
This linear control or dimmer for small incandescent lamps was found in documentation from the...
This VCO with a common operational amplifier was found in an old American documentation. The...