This circuit was obtained from an American 1980s documentation. The frequency depends on the crystal and the circuit may be a PNP that reaches the generated frequency.
This circuit is from a 1980s Signetics documentation. Equivalent operational amplifiers may be...
June 2017 - Mouser Electronics is already shipping the new ROHM DC brushed motor drivers specified for 5.5 V...
The flashing LEDs in this circuit simulate a working alarm and can serve as a deterrent to a...