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Old 04-12-2023, 02:00 PM
DavGoodlin's Avatar
DavGoodlin DavGoodlin is offline
Motorola Minion
 
Join Date: Aug 2011
Location: near Strasburg PA
Posts: 3,413
Tektronix 516

I have an issue with the Intensity control not having much effect on brightness, then all traces fade out after 10 minutes.

The schematic shows a circuit that controls bias on the CRT via R828, a 1 Meg.

Could it be as easy as one bad resistor?

IMG_1210.jpg
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