CBS Hytron 12AX7 ECC83 D-Getter Vacuum Tube Strong  

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***** 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 Roswell, GA  *****

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Industry Bogey transconductance = 1600/1600 µmhos  & 

Industry Bogey plate current =  1.2/1.2  mA

Results = 1260/1240 µmhos  ~  1.06/1.02  mA

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USA Shipping $6 ~ Higher Overseas

I have many other types of tubes  ~  Just Search MY store 

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All tubes Guaranteed 

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