Teknotoyz
Well-known member
I have a 20EZ which was working GREAT after a cap job for months....
Then it goes dark.... Tube is not firing up at all now (no neck glow).
No fuses are blown, but the machine also wasn't grounded either.
Checking the B+, I got 140v...
Checking the isolation transformer plug.... I'm running at 108v.
The transformer is tapped as high as it can be at 120v on the primary side.
Sooo, is 108v acceptable for the 20EZ to run on?
If not, how do I lower it, no taps for a higher primary voltage.
I got a new regulator, current limiter, and B+ pot in hand now.
Planning to check diodes first, the machine wasn't grounded, so I'm not sure if the fuse would blow on a bad diode or not.
I'm trying to make sure I have my plan or repair in mind before I start so I don't damage anything more....
Then it goes dark.... Tube is not firing up at all now (no neck glow).
No fuses are blown, but the machine also wasn't grounded either.
Checking the B+, I got 140v...
Checking the isolation transformer plug.... I'm running at 108v.
The transformer is tapped as high as it can be at 120v on the primary side.
Sooo, is 108v acceptable for the 20EZ to run on?
If not, how do I lower it, no taps for a higher primary voltage.
I got a new regulator, current limiter, and B+ pot in hand now.
Planning to check diodes first, the machine wasn't grounded, so I'm not sure if the fuse would blow on a bad diode or not.
I'm trying to make sure I have my plan or repair in mind before I start so I don't damage anything more....
