This circuit was obtained from an 80's Electronic Engineering. The circuit detects ice formation by triggering a warning light. The operational amplifier is of the time.
Suggested by Philips documentation from 1968, this circuit uses components from the era that can...
This 13.6 V x 15 A power supply was found in a 1997 documentation. It is suitable for powering...
Using a dual 555 CMOS this very useful circuit on the bench was found in the July 1998 Electronics Now...