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5670W JAN BLACK PLATE
  • 5670W JAN BLACK PLATE
  • 5670W JAN BLACK PLATE
General Electric (GE)

5670W JAN BLACK PLATE

23.00 USD

Top of the line Mil. Spec. audio double triodes manufactured in the United States by renowned General Electric. These fine miniature glass 9 pin tubes may be used as amplifier, oscillator, mixer or multivibrator at frequencies from audio to VHF, in industrial and airborne applications. With short black plates and top round getters, these tubes are glass etched 5670 U.S.A. with variable dot codes, and printed in green with GE logo, JAN 5670W MADE IN U.S.A. Boxes are standard military gray NATO coded 5960-0840 RN NO. T8009-4-B022 SERIAL NO. OMT84-03451. 1975 & 1985 production.

Condition

Tube Matching
Tube Matching
6.00 USD by tube

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.
Quantity

General Electric (GE)
80 Items

Data sheet

Base
9 pin miniature Noval B9A
Boite type
2/1
Emplacement
45
Fonction
Double triode

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