RCA 5879 Triple Mica Almost Perfectly Matched (1.0%) Pair NOS

This is pair of RCA 5879 vacuum tubes. These tubes have a 9 pin glass bottle with RCA markings on the tubes.  They both test very strong, with greater than NOS readings. Both tubes are visually almost identical. Each tube has silver plates, clear glass, white or red lettering, triple mica, and top getter. These are excellent RCA 5879 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 these tubes on my recently calibrated Hickok 600a and my TV7D/U and the results are as follows:

2,350

2,325