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All American Five / AA5

49.00 USD

Famous All American 5, set of five New Old Stock tubes for millions of iconic radios from the mid 1940's to early 1960's. One of each : 35W4, 12AV6, 12BA6, 12BE6, 50C5, all with 7 pin B7G bases. These miniature glass tubes, from leading American makers such as RCA, GE, Sylvania and Westinghouse come boxed and tested.

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

Various
25 Items

Data sheet

Base
7 pin miniature B7G
Boite type
5/1
Emplacement
34
Fonction
N/A
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