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.
This circuit was obtained from a 1977 magazine, but can still be mounted using BC548 for TR1 and...
We found this circuit in a European publication from the 1990s. Transistors are still common types...
The figure shows how to add a Darlington stage to an operational amplifier in order to obtain a...