RCA Black Plate 6SN7GTB Very Well Matched Pair (5.8%) NOS 6SN7

This is a well matched pair of RCA 6SN7GTB vacuum tubes. Both tubes test very close to each other. They both have staggered black plates, bottom getters, and red lettering. They both have a medium, clear glass envelope and a slim base. These are highly sought after RCA 6SN7GTB tubes, act quickly before they 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:

3,000/2,825
3,000/2,925