Found in 1965 Delco Radio documentation, this circuit uses transistors from that era. Modern equivalents can be used. The characteristics of the inductor were not given.
This traditional configuration was found in a 1984 publication and does not innovate anything we...
We found this chopper circuit in a 1967 publication. The transistors are of the time, and current...
The purpose of this circuit is to ensure that an auxiliary 12 V battery continues to supply power...