This small battery-powered high-voltage generator was found in Radio Electronics magazine from June 1965. The transformer is the power supply type determining the output voltage,
The operational amplifier can be of any type in this circuit, found in a 1974 publication. The...
Found in a 1967 General Electric SCR manual, this circuit triggers in case of excess current,...
With this configuration it is possible to obtain an 80 dB gain from two 741 operational...