This biestable vox circuit was found in an old documentation. The circuit makes use of components of the time (80's) and can work as a shield since the power is 5 V.
This precision circuit was suggested by General Electric in 1980s documentation. The circuit can be...
This circuit was obtained in a 1979 101 Electronics Projects. The circuit can be assembled easily,...
Originally, this circuit is from an English magazine, but I found it in Argentina's Radio Chassis...