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.
September 2017 - Mouser Electronics is already stocked with NXP MRF13750H transistors for RF power...
The coils determine the frequency of this oscillator that we found in the January 1996 issue of...
Indicated for applications with a PC, this circuit was obtained in an English publication in 1992....