This circuit shows how to use the 4007 MOSFETs in an amplifier stage. We found it in an Electronics Now issue from May 1993.
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...