We find this circuit in an American 80's documentation. No further information about the transformer is given. The circuit serves as a reference for any repair work.
I found this circuit in a Popular Electronics from 1992. The circuit shows how we can use two...
This circuit is from the 1994 Linear Applications Handbook by National Semiconductor. The circuit can...
We found this shield circuit in a 1991 technical documentation. The phototransistor can be...