Found in the March 1989 issue of Radio Electronics magazine, this circuit is used to test printer and other cables. The indication is made by LEDs.
This is a Philips commercial circuit from the 90s. The integrated circuit must have a good heat...
This circuit was sent by our longtime collaborator, Adriano Muniz Moura – Pirapora-MG. The...
We found this circuit in American documentation from the 1980s. Transistors can be of general use....