We found this circuit in a 1967 RCA SCR manual. The circuit uses components from the era. The bridge diodes must withstand the current of the controlled load.
This circuit generates interval signals controlled by a light sensor. The basic time of the sound...
This 1968 Mullard circuit detects fire by smoke using LDR-type sensors. The circuit makes use of...
With this circuit it is possible to generate 3-phase rectangular signals from a clock signal. The...