This circuit is from a technical documentation on the National Semiconductor LM3909. The tripping transformer has a 1:1 turn ratio and the circuit is powered with 5V.
Other operational amplifiers can be used on this unit gain amplifier. The circuit is from the 1993...
January 2017 - Pulse Electronics ER11 transformers with high insulation can be obtained from...
This circuit was found in a 90’s Electronic Engineering. The integrated circuits are of the time...