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Old 4th Jul 2013, 2:07 pm   #60
maninashed
Rest in Peace
 
Join Date: May 2011
Location: Preston, Lancashire UK
Posts: 955
Default Re: Tektronix 465B Scope - Some problems.

Dave, that will be the blanking pulse, it switches the beam off when it returns. That is normal.
Have you checked the details of post 55?
I'm not sure if leaving the deflection plates floating with have any adverse effect.
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