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Precise 111m tube tester restoration
#14

 I just spent more than an entire day going through the construction manual checking all the wiring - step by step. Result? Big fat 0! Icon_e_confused  Nothing I could see wrong.  Well, I did find a couple of oddities, such as a calibration control wired backwards and a grid connection to the loktal tube socket center that I am not sure about. So, I am troubleshooting. So far, screen and plate voltages are present. I did find that when I switch the screen only to a different voltage, it checks (meter registers). Seems it only does not measure on the B setting, yet it shows the correct screen voltage on the tube. Plate setting makes no difference, nor does rocking the switches. So - this is where I am right now. Got the old 111 apart and am comparing.

If I could find the place called "Somewhere", I could find "Anything" Icon_confused

Tim

Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44


Messages In This Thread
Precise 111m tube tester restoration - by TV MAN - 05-27-2016, 11:00 AM
RE: Precise 111m tube tester restoration - by TV MAN - 07-22-2016, 06:13 PM



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