This converter that allows high voltages to be obtained from batteries was found in Radio Electronics magazine from June 1959. The circuit uses a special transformer providing 9 to 18W of output.
This oscillator circuit for sinusoidal audio signals with operational 741 requires a symmetrical power...
Found in a 1974 Radio Shack documentation. This circuit must have a connection to the ground of...
This sensitive circuit detects the live pole of a power grid or outlet. The circuit makes use of a high...