Thread: 12UP4 condition
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Old 06-01-2018, 11:11 AM
EdKozk2 EdKozk2 is offline
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Join Date: Mar 2014
Location: Elkhorn, WI
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Quote:
Originally Posted by old_coot88 View Post
Did the brightness control work OK with the test CRT?
Yes, the brightness control works OK with the test crt. I checked the DC voltage range ( 11 to 99 volts ) from the brightness pot to cathode pin 11. That was correct also. I even tried re-flowing solder to pin 11, just for good measure. The schematic is in Sams' 91A.
Ed
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