Westinghouse 12AT7 ECC81 Vacuum Tube 1966 Bogey +
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The measurements provided were made on a Triplett 3444 that has been modified to test tubes
Industry Bogey transconductance =5500|5500µmhos
Industry Bogey plate current = 11.0|11.0mA
Results =5900|6100µmhos ~11.9|14.0mA
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