This circuit provides a reference voltage of 2.5 V adjusted in the trimpot. The transistor can be the BC558 (in the drawing it came out as NPN). The control is done by a rectangular input signal.
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...