CV135 / EY91
  • CV135 / EY91
  • CV135 / EY91
Mullard vacuum tubes

CV135 / EY91 D GETTER

9.00 USD

Fine Mil. Spec. 7-pin rectifier tubes manufactured by Mullard. These tough high-vacuum half-wave miniature glass rectifier tubes have black and silvered plates, top D-gatters, and come with black phenolic pin protectors. They will provide a maximum of 250 volts at 75mA. Tubes are printed in white CV135 KB/D JH and War Office arrow, wrapped in corrugated cardboard and tissue paper roll, then boxed in brown military boxes stamped VALVE ELECTRONIC CV135 A.M. REF. NO. 10CV/135 D.

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

Mullard vacuum tubes
94 Items

Data sheet

Base
7 pin miniature B7G
Boite type
2/1
Emplacement
48
Quide
2242
Fonction
Half-wave rectifier
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