This is an closetly matched pair of RCA 5687 tubes. Both of these tubes are well balanced and they test very similar to each other. These tubes are visually almost identical.  These tubes have long black plplates faded red lettering, and a halo top getter. These are highly sought after RCA 5687 tubes, act quickly before they sell out!! More available upon request.

Be careful buying tubes from other sellers who list "matched pairs" but do not provide test results or specify the equipment that they use to test their tubes.

I personally tested this tube on my recently calibrated Hickok 600a and TV7D/U tube testers.

The results are as follows:

14,000/15,000
14,500/15,000

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Listed3 years ago
ConditionExcellent (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
Brand
Model
  • 5687
Categories
Made In
  • United States

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TX Audio Tubes

HOUSTON, TX, United States
Joined Reverb:2021

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