Metronome using operational (CB22060E)

We found this circuit in an English publication. The transistor can be BC549, and the power supply can be between 5 and 9 V.

High Power Inverter (CB16531E)
The critical component of this project from a 1988 publication is the transformer. The final power...
PMGD175NEX Power Mosfet (COM120E)
September 2016 – At Mouser is available the new N channel MOSFETs PMGD175NEX from NXP for currents of 950...
Direction & Speed Control (CB5370E)
This series motor control circuit was obtained from an old manual from the 80's. The SCRs must be...