This circuit for analog video signals was found in the August 1970 issue of Radio Electronics magazine. The circuit is used to drive two video inputs from one signal.
This circuit for incandescent lamps was found in an American documentation from the 80s. The...
This is the power step of the previous circuit. Output transistors must be mounted on good heat...
This decoder filter was found in a 1975 documentation. The integrated circuits can be 741. The...