We found this circuit in the Radio Electronics Handbook magazine special edition of 1992. The circuit uses an optocoupler as an electronic potentiometer.
A TTL NAND trigger is the basis of this oscillator which, with the indicated components, can...
The integrated circuit used in this stereo preamp is uncommon today, but the circuit can be...
This circuit is a switched DC / DC converter that converts +15 V and +27 V with a maximum current in...