12AL5 TEKTRONIX
  • 12AL5 TEKTRONIX
  • 12AL5 TEKTRONIX
Westinghouse

12AL5 TEKTRONIX

15.00 USD

 Mint boxed glass 7 pin miniature double diode tubes manufactured in United States and tested by Westinghouse, then re-tested and calibrated by oscilloscope giant Tektronix for their top of the line equipment. These fine tubes with silver plates and top getters are printed in yellow with logo, WESTINGHOUSE ELECTRONIC TUBE and typical 1964 production codes, then Tektronix places their label printed 157007500. Boxes are standard white printed with Tektronix logo, TEKTRONIX INC. PART NO. 157-0075-00 TUBE 7M 12AL5.

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

Westinghouse
23 Items

Data sheet

Base
7 pin UX7
Boite type
1/2
Emplacement
43
Quide
391
Fonction
Double diode
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