This circuit is from a 1967 General Electric SCR manual. The circuit supports other SCRs depending on the power of the controlled load. The control is half wave.
We found this circuit in an American documentation from the 60's. The transistors are made of...
The accuracy of this circuit depends on adjustments made with capacitors of small tolerances of known...
The figure shows how to implement an OR function with two inputs, using a relay. The relay...