807 AMALGAMATED WIRELESS
  • 807 AMALGAMATED WIRELESS
  • 807 AMALGAMATED WIRELESS
RCA vacuum tubes

807 AMALGAMATED WIRELESS

49.00 USD

 Extremely rare 5 pin UX5 based beam tetrodes manufactured in Australia under licence from RCA by Amalgamated Wireless Valve Co. Pty. Ltd. These fine glass shoulder type tubes, designed as RF amplifiers, frequency multipliers for radio transmitters, or audio output tubes, come with rigid metal internal structure, black plates, and bottom getters. They are glass etched 807, printed on base RADIOTRON MADE IN AUSTRALIA, and engraved with War Department arrow, DD. They are boxed in red white and blue boxes printed 807.

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
Last items in stock

RCA vacuum tubes
1 Item

Data sheet

Base
5 pin UX5
Boite type
8/10
Emplacement
SS
Quide
623
Fonction
Tetrode
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