The purpose of this circuit is to improve a trigger circuit using a zener diode. The circuit was found in an American documentation from 1964. It can be improved using equivalent modern components.
This filter is from 1978 documentation. The source must be symmetrical and the gain in the center of...
This circuit is for the system that has the receiver CB17134E. The emitting LED must be installed in a...
This configuration, already found in other articles in this section and on this site, was obtained...