Quote:
Originally Posted by RetroHacker
Yeah, I'll definitely have to check that - I haven't tried measuring the cathode current yet, but I'll probably do that next. I need to remember to check tonight when it gets dark out to see if I can determine where the hissing is coming from.
There is some blooming and changing of size with screen content, but it's not excessive. A lot of old sets don't have great HV regulation.
I do like the idea of modifying it with a regulator tube, has anyone done this? Is it even possible with this flyback? Seems like it would be more stable then. I mean, there's already an extra chassis cutout for a tube socket...
The thing I really, really need to do is the cataracts surgery though. It's kind of difficult to judge picture quality with the tube clouded up as much as it is. Annoying, because there isn't really a way to remove the tube while leaving the yoke on it, so I'll have to reconverge everything when I put it back together - shame, because the convergence seems really good as it is.
-Ian
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Regarding the change to a shunt regulator, you'd have to consult the schematic, to see if it uses the same flyback. I really doubt it.
BTW, the H12, used a housing on top of the HV cage.
