The main feature of this circuit found in an old American publication is that it is powered by the very signal it converts. The transistors are of the time and can be replaced by current types.
This high impedance circuit for low voltage sensors was found in a 1980s documentation. The JFETs...
The SCR sector of this circuit can be powered by high voltage AC and instead of the LEDs we can...
Maxim MAX20094 and MAX20095 Battery Chargers Maxim Integrated offers through Mouser Electronics high...