This circuit was published in an article in Electronics Now magazine in October 1995. The circuit includes a power supply. The power transistors are equivalent.
This circuit for ceramic cartridges was found in the March 1993 issue of Electronics Now magazine. Q1...
In the figure we have the way to obtain an adjustable 1 to 10 mAconstant current source. The...
Suggested by General Electric in 1967 documentation this circuit uses an isolation transformer to...