Found in the April 1978 issue of Radio Electronics magazine, this circuit is intended to be powered by a symmetrical 15 V source. The signals are low intensity.
Using an optocoupler this circuit turns on the light in a bedroom for a set amount of time when...
The presented circuit uses two old germanium transistors. We found this configuration in a...
The circuit shown fires an auxiliary flash from a flash commanded directly by the camera. The sensor...