View Single Post
  #9  
Old 02-18-2016, 03:05 PM
old_tv_nut's Avatar
old_tv_nut old_tv_nut is offline
See yourself on Color TV!
 
Join Date: Jul 2004
Location: Rancho Sahuarita
Posts: 7,221
Quote:
Originally Posted by Electronic M View Post
I see a spark gap on the yoke. Could that be sparking over for part of the scan throwing off the linearity etc?
I think any sparking would produce an erratic tearing as it changed from line to line. This is some sort of ringing in the sawtooth sweep. That's why I suspect one of the caps that is supposed to tie one end of the deflection coil to a constant DC may be open.
__________________
www.bretl.com
Old TV literature, New York World's Fair, and other miscellany
Reply With Quote