>is it possible, without tampering with the tv's tube to make an >oscilloscope out of and old black&white tv? >preferably by making some sort of modulator, which could plug into the >arial in socket The way I saw it done was to hook a stereo audio amp (20W+) to the deflection coils. This is with a B/W TV, of course. Terry Bowman, KA4HJH "The Mac Doctor" ICQ: 45652354