This circuit was found in Motorola documentation from the 80's. The MOSFET admits equivalent according to the current and voltage of the motor that must be controlled.
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...