Originally designed to trigger a printer with a delay, this circuit can be used for other purposes. The circuit is from a Radio Electronics from September 1984.
This circuit produces the ticking of a clock on a common piezoelectric transducer. The circuit has an...
The basis of this circuit is a double T in the feedback, which has the components calculated to...
This configuration was found in the Texas Instruments optoelectronics manual. PNP transistors...