Toshiba

11AR11 GRAY PLATE

7.00 USD

Fine compactron based glass tubes containing two remote cut-off pentodes manufactured by Toshiba. These 12-pin tubes are designed as IF amplifiers in TV receivers, have gray plates and top halo getters, and are glass etched 11AR11. They are also printed in white ELECTRON TUBE TOSHIBA JAPAN TOKYO SHIBAURA ELECTRIC and coded 4H. Boxes are standard red and blue printed TOKYO SHIBAURA ELECTRIC CO. LTD. 11AR11.

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

Toshiba
30 Items

Data sheet

Base
12 pin Compactron Duodecar
Boite type
2/1
Emplacement
15
Quide
270
Fonction
Twin pentode
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