General Electric (GE)

6072 JAN

119.00 USD

Top of the line Mil. Spec. twin triode amplifier tubes manufactured for the Armed Forces in the United States by renowned General Electric. These amazing miniature glass 9 pin tubes, containing two identical triode sections, designed for industrial and military applications where microphony is critical, have solid black plates, robust construction, and top round getters. They come glass etched 6072A U.S.A. with dot codes, and are printed in green with GE logo, JAN 6072A MADE IN U.S.A. and 1970's production codes.


Tube Matching
Tube Matching
6.00 USD by tube


A tube may have one, two, or three internal sections depending on the purpose of the tube; somtimes these sections are all the same, sometimes they are different. Due to manufacturing and material tolerances, there may be slight differences between the original specification and the actual tube. Tube matching tests each one of these internal sections and selects tubes, compared to original specifications at manufacture, for balanced performance and good sound.


All our tubes are tested by us prior to packing on our Stark, AVO, Simpson or RF Laboratories Inc. calibrated testers. On request for tube matching, tubes are matched for Mutual Conductance in Micromhos and Plate Current in Milliamps on our Amplitrex or Radioelec Duovac testers, with results printed for each  individual tube. Certain tubes difficult to test are matched for Mutual Conductance in Micromhos only on one of our regular calibrated testers. On request we can also test for Microphonics.


10 Items

Data sheet

9 pin miniature Noval B9A
Boite type
Double triode
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