This high voltage amplifier is based on Elantec components based on high voltage feedback. The supply voltage range is 50 to 230V symmetrical and the quiescent current is 56 mA.
This project is from a 1982 documentation, based on an astable multivibrator with two transistors. The...
Found in a 1967 US magazine this circuit generates positive and negative voltage pulses from a...
Rumble is a low frequency noise between 25 and 200 Hz that appears in old turntables, affecting...