This circuit visually indicates that a high voltage is present in an outlet or other point. The neon lamp is common, and the appearance of the assembly is suggested in the same figure.
This configuration, which appears on other circuits on this site, was found in a European...
This circuit can supply currents up to 1 A from alternating input voltages. The circuit uses...
This very simple circuit was found in a 1977 documentation. The L1 coil has 3 turns of AWG wire 22 to...