Sylvania

6CB5A

32.00 USD

Powerful beam power amplifier tubes manufactured for the Armed Forces in the United States by renowned Sylvania. These fine 8 pin octal based glass pentode tubes with top plate cap, come with black plates and side getters. They are glass etched 6CB5A U.S.A. and printed in green on base 6CB5A SYLVANIA U.S.A. 34167 DGU with 1976 production codes. Boxes are standard military white printed 6CB5A, and NATO coded 5960-00-615-4722 under contract number # CONT.NO.2PE 77-00596 4-78.

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

Sylvania
21 Items

Data sheet

Base
8 pin Octal
Boite type
2/1
Emplacement
07
Fonction
Pentode
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