04-28-2017, 02:24 PM
That's great! You are certainly making progress.
Have you tested any of the tubes? Weak tubes will make a big difference in the sensitivity. Most of my original tubes in the 47-1227 were very weak.
Have you tested any of the tubes? Weak tubes will make a big difference in the sensitivity. Most of my original tubes in the 47-1227 were very weak.