Radiotechnique RT 12AT7, Well Matched Pair (9.1%) Suresnes Factory NOS 12AT7 ECC81

This is a well matched pair of Radiotechnique 12AT7 made in the Suresnes factory. Both tubes have the Suresnes factory code. Both of the tubes are well balanced and they are visually almost identical to each other. These tubes have short, gray, ribbed plates shaped like wings, white lettering, and a halo top getter. These are highly sought after RT 12AT7 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:

4,650/4,900

4,450/4,750