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RE: Bad H-K insulation is another scam

Crank up the filament volts to 10V for a few minutes without any HT , leave to cool and retest . Usually sorts 807's out but not all of them .

Al


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  • RE: Bad H-K insulation is another scam - Al Noakes 08/12/1003:11:51 08/12/10 (0)

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