Re: 5116+5D10 intensity problem


 

If you switch it off and allow it to cool down for (say) a few hours or overnight, does it work again for a while?

I'm thinking this might be one of the problematic epoxy potted HT transformers

David

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Yeun-Jung Wu
Sent: 14 February 2020 10:43
To: TekScopes@groups.io
Subject: [TekScopes] 5116+5D10 intensity problem

Hello:

:

After operation about one and a half hour the intensity gradually decay. It was accompanied by the expansion of horizontal and vertical graticutes. Now one dotted horizontal and vertical division expanded to include four real inner CRT divisions. Read out information was pushed outside of screen. Pushing the "Beam finder" button display a image filled out the entire screen (save + Power on), instead of a scaled down version of display. The intensity of the pattern was barely visible. Weak wave forms were still displayed on the screen; mostly with a red LED warning: possible under-sampling.

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