Actually I am not preoccupied with the discovery of how the anomaly might sound. My primary interest is to discover if this “mystesises” is avoidable sign of the tube ageing. If so then it would be very good. I will send you more used tubes…..
Also, if the tracer could do two tubes at once then it make sense to have one selected reference tube and test all candidates against its reference traces, am I right? An alternative would be to have a contemporary digital scope with ability to run one channels from memory and another from input…. The CaT
"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche