XXX Rare Japan NEC Vintage Nippon 12bh7 Vacuum Tube Black Plates Bogey
Item History & Price
Reference Number: Avaluer:58446618 | Model: 12bh7a |
Type: Vacuum Tube | Country/Region of Manufacture: United States |
Brand: Nippon |
Tested on a (1 of 4 MODIFIED/CONVERTED by Paul Hart ~ Roswell GA) Triplett 3444 Tube Tester This tester now tests at Industry standard parameters set by the original Oem tube Mfgs.
Industry Bogey Transconductance = 3100/3100uhmos Industry Bogey Plate Current = 11.5/11.5mA
... Results = 3100/3150umhos & 10.0/10.2mA
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GST#6