Found in an American publication from the 90s, this circuit allows the supply of 3, 6 and 9 V devices with currents up to 1.5 A in the car.
This circuit was found in 80's Popular Electronics. Transistors are commonly used. The...
This low current source uses some components that are hard to find in ours. The transformer is a...
This circuit is from a manual based on information from Japanese components from 1981. The power...