5A/160H / EF91 / 6AM6
  • 5A/160H / EF91 / 6AM6
  • 5A/160H / EF91 / 6AM6
Standard Telephone and Cable

5A/160H / EF91 / 6AM6

9.00 USD

 Pristine miniature glass high gain pentode tubes manufactured in England by renowned STC. These 7 pin RF or IF amplifier tubes may also be used as mixers en television receivers. They have black plates, stout supports and top halo getters. They are printed in blue 5A/160H, and come with black phenolic pin protecters. Boxes are standard white sealed, printed STC 5A/160H VALVE ELECTRONIC MADE IN ENGLAND 26 MAY 1971.

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

Standard Telephone and Cable
69 Items

Data sheet

Base
7 pin miniature B7G
Boite type
4/1
Emplacement
49
Quide
897
Fonction
Pentode
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