On Wed, Oct 17, 2018 at 9:33 AM Josh Dersch via cctalk <cctalk@classiccmp.org> wrote:
> And I was wrong -- the flyback's fine (yay!). Found a nearby 0.015uF, 400V > film capacitor that was shorted. Replaced it and now I have video! It's a > bit dim, it's too wide, and gets wider as it warms up but it's a start :). That suggests to me that what we call the 'EHT' over here -- the 12kV-15kV on the final anode of the CRT -- is low and is sagging under load. Low EHT will cause a dim picture, it will also cause the electron beam to be less 'stiff' (as the electrons are not moving as fast) so the deflection coils have a greater effect and the picture is larger. Possibly more capacitor trouble in the flyback area. -tony