GE JAN 6201 Gray Plate Well Matched (8.8%) Pair NOS 12AT7 ECC81 12AT7WA 12AT7WB

This is a well matched pair of GE 6201 / 12AT7 vacuum tubes. These military spec tubes are an excellent upgrade to 12AT7. The heavy duty construction helps minimize microphonics. Both tubes are closely balanced. These tubes have short, ribbed gray plates shaped like wings, green lettering, and a halo top getter. These are highly sought after GE JAN 6201/12AT7 tubes, act quickly before they sell out!! More available upon request.

These are the legendary GE JAN tubes with white lettering.  These tubes were of such high quality to qualify for military service. Hard to come by, rare, and they sell fast when I get them in stock.

Be wary of sellers who list tubes that are matched without providing test results or the equipment that they used to test the tubes.

I personally tested these tubes on my recently calibrated Hickok 600a tube tester and the results are as follows:

4,650/5,000
5,100/5,000