< ok, so its not a classic computer but there was a discussion a while bac < about ocilloscopes and i happened upon a model 503 at a thift store for < is it worth getting? presumably it works but i have no idea how one woul < it, much less use it. Old... maybe a bit high priced. If it gets a trace then it's likely ok. You can test the V-amp if there is trace by touching the input and seeing if you can get a rough(from noise) sine wave. Allison