This low current source without a transformer is intended for applications where insulation is not important. The circuit has a 110 V (120 V) input and was found in old American documentation.
This circuit, which has a very common configuration, was obtained in a 1994 documentation. It can...
This power control was found in a 1968 power circuit manual. The SCRs are according to the power of...
This traditional crystal radio circuit was obtained from a 1990 documentation. The diode can be...