This circuit was found in Motorola's Linear Interface ICs of 1993. The integrated circuit used is not common and the load current depends on the Triac.
This circuit can generate signals from 100 kHz to 50 MHz depending on the crystal and the...
The circuit in the figure represents a typical application of a phototransistor exciting a relay...
Found in Philips documentation from 1968 this circuit operates at frequencies up to 10 MHz with 76...