Found in technical documentation from National Semiconductor, this circuit provides a voltage of 3.3 V with 500 mA at the output. The component is from the period.
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...