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I have the Hickok 532 with the laboratory meter pack (6 meters). I rarely see it as a audiophile keeps it at his house to keep a steady supply of 12AT7 and 6AS7 tubes for his fire breathers. They are sensitive to transconductance tests.
Most of what I see affecting TV's and the more docile audio gear is grid leakage (6AU6, 12AU7 especially) and shorts. The B&K tube testers have good shorts and leakage tests. My Hickok will miss a leaky tube once and a while (don't flame me Hickok lovers) but when the B&K says leaky or shorted, you can count on it!
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