Quote:
Originally Posted by bandersen
Here's some actual programming. Very watchable.
Very bright spot when turned off. I've seen this damage the phosphor eventually - even when aluminized.
Would like to install a spot killer modification. Anyone know of a circuit?
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I grew up watching a 19" Motorola that did this very thing, I thought it was "normal". The off-spot and a long-ago episode of vertical collapse have left marks on an otherwise strong 19XP4
I do recall a circuit that used a separate set of switch contacts to either ground G1 or to break connection to the cathode if grounded, varies with type of video to CRT. I would personally connect a LV relay that is powered by the filament string, or 120vac coil relay if series heater.