This circuit, which can be used as a shield, was found in General Electric documentation from the 1980s. The coupler uses a photo-SCR. The circuit admits equivalent components.
This circuit activates a relay by activating one of a series of optical sensors that can be...
We found this circuit in a 1980 documentation. The circuit produces popping or beeping sounds on a...
This 12 V to 110 V inverter with 100 W was found in a 1977 Signetics manual. The transformer must...