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 circuit was originally found in a Philips documentation from 1969. It is intended for sensing...
This circuit is obtained from old documentation, activating it when there is a power cut in the...
This circuit is from a 1977 application manual for timers. The circuit provides a negative pulse...