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  • -5.00 USD
6AM4 TOP GETTER
  • 6AM4 TOP GETTER
  • 6AM4 TOP GETTER
RCA vacuum tubes

6AM4 TOP GETTER

10.00 USD
5.00 USD Save 5.00 USD

Excellent miniature glass triode tubes manufactured in United States by renowned RCA. These 9-pin high-mu triodes are designed as grounded-grid mixers over the whole VHF/UHF range for television and radio receivers. They possess sharp cut-off, high mutual conductance (GM) and excellent isolation between input and output. Tubes are glass etched 6AM4 U.S.A. and individully accompanied by test slips inticating original specification mutual conductance (GM) and plate current, dated 1966. Boxed in standard old style RCA red and black boxes.

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

RCA vacuum tubes
279 Items

Data sheet

Base
9 pin miniature Noval B9A
Boite type
1/1
Emplacement
34
Quide
3069
Fonction
Triode