Hi all. I went to pickup a SCA35 and the guy mentioned he will sell the tube tester if I am interested. It happened to be a TV-10A tester. I promptly emailed Dan Nelson for calibration and I got a reply that he calibrates only TV-7. I read somewhere TV-10A/U is similar to TV-7. Serial number of the unit is very low. Please help me find someone who is qualified to calibrate this unit. Thanks in advance.

