2 Thomas Amperex ECC82 12AU7 w/Foil Strip D-Getter Vacuum Tubes ~~ Long Plates 

***** Tested on our  proprietary  tester , the E3444 Triplett/Westmore 501 :

It's a Triplett 3444 / Westmore 501 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 Falls Church , Virginia. *****

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Industry Bogey transconductance = 2200/2200 ยตmhos  & 

Industry Bogey plate current         = 10.0/10.0 mA

                                   Results         = 1500/1900  ยตmhos  ~  7.8/10.0  mA

                                                           1540/1560 ยตmhos  ~ 8.0/9.0 mA

 USA Shipping  $6 

I have many other types of tubes  ~ No Additional Shipping Charges

All tubes are Guaranteed

THANK YOU.  

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