Found in a 1980s manufacturer documentation, this circuit can be used as an optical shield. The integrated circuit is from the era and modern equivalents can be tried out.
This circuit with 5 V power was suggested by Motorola's Linear Databook of 1990. The circuit has...
With an optodiac we have the circuit of the figure, suggested by MotoroIa, in which we do the...
Created to serve as a booster for TV signals in the UHF band, this circuit was found in the March...