Cetron valves

6528A

69.00 USD

Extraordinary rugged double triode power amplifier tubes. With triple mica spacers, these fine glass 8 pin octal based tubes are designed for use with exposure to continuous vibration. They come with black plates and top getters. They are printed on base with Cetron logo, CETRON 6528A MADE IN U.S.A. with various production codes. Boxes are standard white NATO coded 5960-5519 6528A and coded also 2/90 indicating 1990 production.

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

9 Items

Data sheet

Base
8 pin Octal
Boite type
1/1
Emplacement
27
Quide
345
Fonction
Double triode
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