General Electric (GE)

6FD6 / 6ES6 / EF97

7.00 USD

Top quality tubes manufactured in the United States by renowned General Electric. These 7 pin miniature glass pentode tubes, designed for RF and IF amplifier service in car radio receivers, come with black plates and top round getters. They are printed in white with GE logo, ELECTRONIC TUBE with various codes, glass etched 6FD6 U.S.A. Boxes are standard GE orange and gray printed 6FD6.

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)
20 Items

Data sheet

Base
7 pin miniature B7G
Boite type
1/1
Emplacement
38
Quide
260
Fonction
Pentode
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