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

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

**** 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  

********************************************************************* 

Industry Bogey transconductance  = 2200|2200 µmhos   

           Industry Bogey plate current =  10.0|10.0mA

                                               Results =2125|2175µmhos  ~10.2|10.5mA

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                       

USA Shipping $6

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

All tubes Guaranteed

Thank you   

~~~~  Please click on the link below to view more items in my store.  ~~~~~~~~

                                               GreenGirl's Guaranteed VintageTubes

305