Mullard vacuum tubes

5726 / 6AL5W

15.00 USD

Quality miniature glass double diode tubes manufactured in North America by Mullard. these 7 pin tubes come with silver plates and top D getters. They are printed with Mullard logo, MULLARD 5726/6AL5W MADE IN U.S.A. Boxes are standard Mullard blue printed 5726 BVA (British Valve Association).

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

39 Items

Data sheet

Base
7 pin miniature B7G
Boite type
5/11
Emplacement
45
Quide
663
Fonction
Double diode
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