GE JAN 6201 Black Plate Triple Mica Well Matched (8.5%) Pair NOS 12AT7 E81CC ECC81 12AT7WA 12AT7WB 12AT7WC

This is a well matched pair of GE JAN 6201 / 12AT7WA 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 black plates shaped like wings, triple micas, white lettering, and a horseshoe or halo top getter. These are highly sought after GE JAN 6201/12AT7WA tubes, act quickly before they sell out!! More available upon request.

These are the legendary GE JAN tubes with white lettering.  They were of such high quality as 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:

4,600/4,300
4,350/4,700