RCA 5U4GB Tall Bottle Black Plate Rectifier Balanced Single NOS 5U4
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This is a well balanced single RCA 5U4GB tall bottle vacuum tube. This tube has a tall glass bottle with RCA markings on the base. 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/red lettering, clear glass, and top or side getter. 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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