This circuit is from an Electronics Now from the 90s. The circuit uses a power integrated circuit from the time that must be equipped with a heatsink. The power supply is 18 V.
We found this circuit in a Popular Electronics from 1992. It consists of a voice scrambler used in...
This dual power supply for power amplifiers with a voltage of 40 V and a current of 3 A was found...
Found in a publication from the 60's, this power supply has no regulation, but only current...