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.
This circuit is suggested by the National semiconductor and is based on an increased power...
The setting of this power supply is only 0.1%. We found it in a 1969 US documentation. Transistors...
This circuit amplifies signals from 0.5 Hz to 300 kHz. We found it in an old documentation. Equivalent...