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.
This circuit consists of an adapter that allows the reading of low currents at various scales. A...
This circuit is intended for the production of an audible signal from the capture of a continuous...
This circuit is from a 1980s Signetics documentation. Equivalent operational amplifiers may be...