General Electric (GE)

12DQ6B GRAY PLATE

18.00 USD

Fine beam pentode amplifier tubes manufactured by General Electric in the United States. These tough glass 8 pin octal based tubes with anode top cap, designed for television receiver service, come with long gray plates and side getters. They are glass etched 12DQ6B U.S.A./CANADA and printed in white with GE logo, ELECTRONIC TUBE 12DQ6B/12GW6. Boxes are standard GE orange and gray printed 12DQ6B/12GW6. Photo is typical of available inventory.

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)
18 Items

Data sheet

Base
8 pin Octal
Boite type
3/1
Emplacement
17
Quide
312
Fonction
Pentode