General Electric (GE)

12BA6 JAN

13.00 USD

Rugged pentode amplifier tubes manufactured for the Armed Forces in the United States by General Electric. These tough miniature glass 7 pin tubes, designed for high transconductance RF amplifier service, come with gray plates and top getters. They are glass etched 12BA6 USA, printed in green with GE logo MADE IN U.S.A. and coded 33173 87-15, indicating 1987 production. Boxes are standard military gray NATO coded 5960-00-166-7665 under contract DLA900-87-W-2129, printed JAN 12BA6.

Condition

New Old Stock (New in box)

	Tube Matching 6.00 USD by tube
LEARN MORE WHY ? 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. HOW ? 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.