Suggested by General Electric in 1965 documentation, this flasher has a control circuit with a neon-light optic coupler and LDR. The circuit is for incandescent lamps.
This sensitive motion sensor with inductive sensor was found in a 90s Elektor. The circuit uses only...
This simple balance indicator for sound equipment was found in a 1982 documentation. The M1...
This circuit was found in a 1992 documentation. It uses a photo diode as a receiver and an...