This circuit with a few watts of power was found in the April 1995 issue of Electronics Now magazine. The voltage obtained and the efficiency depend greatly on the transformer.
When there is no voltage in the power grid, the circuit causes a lamp to light. The circuit can be...
We found this circuit in an English publication from the 80's. The circuit is perfectly current,...
This different audio amplifier was found in a 90's Electronic Design. The circuit uses components...