This circuit was obtained in a 1967 Raytheon manual. The company's component is an optical coupler with a photo-resistor and a lamp. Transistors support equivalents.
The circuit shown in the figure consists of a phase shift oscillator and its components have been...
This amplified speaker is from a Radio Electronics from September 1988. The power integrated...
Texas Instruments UCC21225A is available from Mouser Electronics. It is an isolated gate driver...