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bk 747 tube tester

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  • bk 747 tube tester

    ok its at least 7 years since i had a go with this -and i am very out of practice - bk 747 tube tester - bulb pl1 opened up -2v 60ma bulb - if i remember i tried another bulb but the ma rating was different and it opened up also - where to get this bulb ? - i quick measured some other working voltages and fl-1 and 2 lite - will unit have any function with pl1 open? - oo3
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