Amperex vacuum tubes

7062 SQ NATO

45.00 USD

Special Quality double triode tubes manufactured for the Armed Forces in Holland by Amperex. These fine miniature glass 9 pin tubes, designed for computer applications, come with long gray plates, thick mica internal spacers, and are glass etched 1V3 4113. They are printed in white with music note and Amperex Bugle Boy logos, 7062 AMPEREX MADE IN HOLLAND, and coded 1 49. Boxes are standard white printed 7062 and NATO coded 5960-882-0183.

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.