5755 JAN

16.00 USD

11.00 USD Save 5.00 USD

Robust NOS double triode miniature glass tubes manufactured in the United States for the military by renowned Raytheon. With gray plates and top halo getter, these 9-pin tubes are printed in red RAYTHEON JAN 5755 MADE IN U.S.A. and coded 293 280 79-41, indicating 1979 production. White military boxes are NATO coded 5960-00-240-3171 under contract DLA 900-78-C-0769 and printed SIMILAR TO CV3755 DATE PKD.9/79.

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.