Columbia Broadcasting Systems

5Y3WGTA JAN BROWN BASE

48.00 USD

Quality Mil. Spec. glass full-wave rectifier tubes manufactured in the United States by renowned Columbia Broadcasting System CBS. These 8 pin octal based tubes come with brown bases, black ribbed plates and extra mica internal supports. They are glass etched 5Y3WGTA, and printed on base with CBS logo, JAN-CHY-5Y3WGTA MADE IN U.S.A.

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

3 Items

Data sheet

Base
8 pin Octal
Boite type
1/5
Emplacement
SS
Quide
77
Fonction
Full-wave rectifier
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