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.
The circuit presented generates pulses at regular intervals with the duration controlled by a...
Found in Electronics Now, this circuit generates signals for testing like a signal injector. The...
This simple expandable circuit was obtained from a Popular Electronics from the 80's. The supply...