The maximum current of this circuit is 200mA, and the ripple is only 50 mV. The circuit is suggested by Texas Instruments in its linear applications manual.
This 70 kHz oscillator is used to erase tapes in pre-recording. The circuit is from 1968 General...
We found this circuit in an old documentation for hams. In it we have the way to use a varicap to...
This sensitive touch circuit that triggers an oscillator uses only transistors. The circuit is...