With this circuit it is possible to obtain a higher voltage from a zener diode. The circuit is from a 1970’s EEE. The device used as a constant current source is uncommon today.
Mouser Electronics is stocked with Texas Instruments SWIFT Step Down TPS54824 Synchronized Power...
Obtained from a 1996 documentation, this circuit uses common components and has a voltage gain of 200...
This circuit is from a 1980s documentation featuring two time constants for sound decoding. The...