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 was found in the power semiconductor manual of the 1980s ON Semiconductor. The...
This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time...
August 2016 – It can be obtained from Mouser Electronics the new modules Littelfuse for surge...