CBS 6SN7GTB Black Plate Well Matched (9.0%) Pair NOS 6SN7 6SN7GT

This is a well matched pair of CBS 6SN7GTB vacuum tubes. Both tubes test very close to each other. Both tubes are branded CBS. They both have parallel gray plates, side getters, and both have red lettering. They both have a medium, clear glass envelope and a slim black base. These are highly sought after CBS 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:

2,500/2,650
2,750/2,500