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.
August 2016 - It can be obtained from Mouser Electronics, Modules Intel Curie low power containing...
This circuit was found in a 1965’s General Electric documentation. It is intended for low voltage...
This transformerless 16-ohm speaker circuit was found in a Radio Electronics from October 1963. The...