General Electric (GE)

6BL7GTA JAN

19.00 USD

Rugged Mil. Spec. twin triode amplifier tubes manufactured for the Armed Forces in the United States by General Electric. These fine glass octal based tubes, designed for television receiver service, come with black or gray plates and top halo getters. They are glass-etched 6BL7GTA U.S.A. with various dot codes, and printed in white with GE logo ELECTRON TUBE MADE IN U.S.A. Boxes are standard military NATO, coded 5960-00-583–612 with 1967 or 1979 production codes, under contacts DSA 900-67-M-ZF69 or DLA 900-79-M-ET75.

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)
15 Items

Data sheet

Base
8 pin Octal
Boite type
1/1
Emplacement
09
Fonction
Double Triode