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6EH7
  • 6EH7
  • 6EH7
International

6EH7

9.00 USD
6.00 USD Save 3.00 USD

Quality miniature glass 9-pin pentodes manufactured in Japan by International. These fine remote cut-off pentode tubes possess a very high mutual conductance (GM), and are designed for intermediate frequency amplification in television receivers. Tubes with gray slotted plates, and top halo getter, are printed in white 6EH7/EF183 INTERNATIONAL C SERVICEMASTER, coded JAPAN 6H, and glass etched 6EH7.Boxes are standard blue International C Servicemaster, and are stamped 6EH7 EF183.

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

90 Items

Data sheet

Base
9 pin miniature Noval B9A
Boite type
1/1
Emplacement
39
Quide
644
Fonction
Pentode
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