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I don't think metal bell CRT store as much charge as the glass ones. The glass CRT use the glass bell as a smoothing capacitor, one plate is a coating inside that is connected to the TV HV. A coating on the outside forms the grounded second plate. The TV that use a metal CRT have capacitors as part of the HV circuit, those store a charge that you should discharge to ground, by connecting the bell to ground. So if you use the 10BP4 make sure both the anode button and the ceramic HV caps are discharged.
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07-27-2021, 04:59 PM
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