View Single Post
Old 2nd Jan 2007, 12:58 pm   #6
Welsh Anorak
Dekatron
 
Welsh Anorak's Avatar
 
Join Date: Apr 2005
Location: North Wales, UK.
Posts: 4,431
Default Re: TV adjustments - another quick NOOb question

Hi
If you want to prove the point (for your own interest only), connect three high-value resistors (say 100k) to each cathode on the crt base and connect the free ends together. Then you can sit back and watch a muddy green picture!
I agree with Danny - rejuvenation just doesn't seem to work with these Trinitrons, and shorting the resistor out offers little improvement.

Sony didn't seem too bothered - when Hitachi brought out a duff tube in 1980 - the 'instavision' directly heated cathode on the CBP220 - they were replacing them FOC for six years - and we got paid for doing the job!

Glyn
Welsh Anorak is offline