Maker Pro
Maker Pro

electronik beam

S

Stan

Jan 1, 1970
0
Hi Group, Can someone help please, I have an Advance instrument
Oscilloscope ser#02123, that is giving a fat beam, about 3/8 of an
inch thick, I tried to adjust the astig. and thats about all I can
reduce it to. so, any info on this matter will be taken seriously, and
you will be rewarded with my sincere gratitude, thanks, Stan.
 
J

JeffM

Jan 1, 1970
0
You may be having problems with the focus circuit,
usually a moderately high voltage applied to a focus grid on the CRT.
Got a HV probe and a schematic?
 
S

Stan

Jan 1, 1970
0
You may be having problems with the focus circuit,
usually a moderately high voltage applied to a focus grid on the CRT.
Got a HV probe and a schematic?

I don't have a probe or schematics, I trace the leads to the
astig.pot, and I got 165v, to high...?
 
J

JeffM

Jan 1, 1970
0
We can't pull this stuff out of our asses.
You need manufacturer's data.
 
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