This power control from a 1968 Motorola manual shows how to use a contemporary diac as a zero-crossing detector. The SCR is of the type depending on the power of the load.
This ultrasonic digital remote-control transmitter was found in the January 1976 issue of Radio...
We found this HV generator circuit in a 1967 publication. It can be fitted with SCR TIC106 and the...
We find this circuit in a 555 application manual. The circuit generates triangular signals that...