BELL & HOWELL INDIA 12AU7 ECC82 Vacuum Tube VERY STRONG & BALANCED

Description

BELL & HOWELL INDIA 12AU7 ECC82 Vacuum Tube  VERY STRONG & BALANCED
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**** Tested on our  proprietary  tester , the E3444.
It's a Triplett 3444 that has been enhanced.
This tester uses regulated power sources for the bias, plate, & screen voltages, as well as modified operating & testing procedures.
Filament voltage is also controlled.
Tubes are tested in accordance with the manufacturer's specifications; measurements closely align with a laboratory tester built to rigorously measure vacuum tube characteristics.
Tubes can be accurately matched for gm & plate current at the manufacturer's specified test points or at other specified test points.
***** This tester was prepared by Mr. Paul Hart of Roswell, GA
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Industry Bogey transconductance  = 2200|2200 µmhos
Industry Bogey plate current =  10.0|10.0mA
Results =2125|2175
µmhos  ~10.2|10.5mA
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