Found in a 90’s Electronic Engineering, this circuit detects the lack of phase in the supply of a three-phase load, powering a cut-off system.
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...