This circuit was found in a 1967 General Electric manual. It shows a SCR control with unijunction and zener diode. The triac depends on the controlled load.
This circuit was suggested by Philips in 1967 documentation. The circuit receives modulated light and has...
This circuit generates sequence of pulses in order and times determined by the capacitors in pins...
We found this circuit in a 1979 French publication, but it can still be assembled today with...