In the figure we have a simple 5 V power supply obtained from an American documentation from the 90's. The integrated circuit must be equipped with a heat radiator.
Found in a 1969’s Electronic Design, this circuit operates in a narrow range of voltages....
This power stage with two counterphase transistors and coupling transformers was shown in Radio...
Found in old documentation, this circuit uses special discharge lamps (neon) of the time. The...