General Electric

5751 JAN GRAY PLATE

78.00 USD

Top quality miniature glass double triode amplifier tubes manufactured for the Armed Forces in the United States by General Electric, entirely interchangeable with 12AX7. These rugged mil. spec. pre-amp tubes come with gray plates and top round getters. They are printed in green or white with GE logo, JAN 5751 MADE IN U.S.A. with variable 1960's or 1980's date codes, and are glass-etched 5751 U.S.A. with dot code. NOS are boxed in standard military boxes NATO coded 5960-082-4139 under contract DSA 900-69-C-C854 or DLA900-87-C-0624; NB are pulled from unused replacement modules; photo is typical of available stock. Available in matched pairs or singles, price is for one tube.

Condition

New Bulk
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.