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 circuit is from old documentation, which means that the operational used is not easy to...
Two tone siren (CB9085E) This circuit was found in a 1980’s Radio Electronics. The signal must be...
Based on Texas Instruments documentation, this circuit is based on the BQ2000 a circuit used to...