This circuit was found in a 70s documentation. The transistor is from that time. L1 has 4 turns of wire 20 in the form of 3/32 inches and L1 has 10 turns of the same wire,
The circuit shown charges Nicad batteries from the bicycle dynamo and provides constant energy for a...
November 2016 - Mouser Electronics already has Maxim's MAX17245 DC-DC step-down converters to...
The circuit shown is a suggestion given by an English publication from 1980. In it, a...