Found in a 90s Electronic Design this circuit provides an additional 12 V output to a 5 V regulator. The maximum current is 200 mA.
In the figure we have a simple signal tracer circuit to be coupled to the volume control of an AM...
This circuit was found in documentation from the 90s, using components from that time. The...
This circuit, obtained from old documentation, allows the recovery of sulfated batteries. The...