This circuit is from old documentation, using a component that cannot be found easily today. The indicator is a galvanometer, and the input voltage is in the order of 1 V.
The integrated circuit used in this power supply is no longer very common in power supplies today....
This circuit is basically the same as the previous configuration (CB15616E) with a power stage with...
This 2003 circuit was designed to be installed on a guitar, taking advantage of the magnetic...