RCA 5U4GB Fat Base Black Plate Rectifier Balanced Single NOS 5U4
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This is a well balanced single RCA 5U4GB fat base vacuum tube. This tube has a medium glass bottle with RCA markings on the tube. It tests very strong, with greater than NOS readings. It was manufactured to rigorous industrial specifications for superior quality and long life. It has black plates, faded or white lettering, clear glass, and dual top getters. These are excellent RCA 5U4 tubes that are highly sought after, act quickly before these sell out! More available upon request.
Be careful buying tubes from sellers who list tubes as matched if they do not provide test results or the equipment that they tested their tubes on.
I personally tested this tube on my recently calibrated Hickok 600a and my TV7D/U and the results are as follows:
Pass/Pass
*Rectifiers test on a pass fail scale, they are not measured on gm or transconductance.
| Listed | a month ago |
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| Condition | Excellent (Used) Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more |
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