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Nah, I've seen mention of Sylvania tubes such as the 21CQP4. Oddly enough, that particular tube uses electrostatic focus. The 17CGP4 there doesn't look like a cylindrical face plate, but it's also an electrostatic focus. It would be so nice if that "C" stood for an electrostatic version of the 17QP4. I'd be pretty sure it would work if that was the case. I'll check into this, but I rather doubt that's what it means.
Last edited by RitchieMars; 07-27-2010 at 06:03 PM.
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