Found in a 90s Popular Electronics, this circuit aims to find the voltage of a zener diode up to approximately 20 V. The transformer may have a lower current.
This configuration, different from Motorola's 1990 Linear Databook, uses a voltage reference...
This ultra-low consumption circuit was originally designed to be powered by a solar panel or small...
This double-T sine wave oscillator was found in the December 1995 issue of Electronics Now...