General Electric (GE)

7C5 BLACK PLATE

12.00 USD

Top quality beam power amplifier tubes manufactured in the United States by General Electric. These glass 8 pin loctal based tubes, designed for output service in AC or battery operated radio receivers, are capable of 12 watts plate dissipation. They have black plates and top halo getters, are printed in white with GE logo, ELECTRONIC TUBE, with various production codes, and glass etched 7C5 U.S.A. Boxes are standard GE orange and gray printed 7C5.

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

20 Items

Data sheet

Base
8 pin Loctal
Boite type
1/2
Emplacement
15
Fonction
Pentode
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