This sophisticated audio generator with digital display was found in the March 1984 issue of Radio Electronics magazine. The circuit includes a power supply with various voltages.
In the figure we have a circuit in which two moving bar/dot indicators are connected together to...
This simple unregulated half-wave font was found in old American documentation. The diode is...
This simple radio for listening to a headphone with two CK722 transistors was found in Radio...