View Single Post
  #65  
Old 01-04-2014, 03:58 PM
bandersen's Avatar
bandersen bandersen is online now
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
Posts: 8,814
Back when I restored this set the first time around, I had noticed a gradient in the brightness. Here's a shot of the same issue with the new CRT. I suspected it had to do with the vertical retrace blanking circuit. So I disconnected it and the brightness is now uniform but the retrace lines are back. I'll play around with different RC values and see if I can get it working correctly.

__________________
Here are my Vintage Radio & TV YouTube Channel and Photo Gallery
Reply With Quote
Audiokarma