GE Made For Motorola 12AT7 Gray Plate Well Matched (3.2%) Pair NOS ECC81

This is a well matched pair of GE 12AT7 vacuum tubes. These tubes were made in the USA by GE, branded Motorola, and are an excellent upgrade to current production Chinese and Slovakian junk. They were manufactured to rigorous industrial standards so you can expect low noise and microphonics. Both tubes are very closely matched, and one tube is perfectly balanced. These tubes have short, ribbed gray plates, red lettering, and a halo top getter. These are highly sought after GE 12AT7 tubes, act quickly before they sell out!! More available upon request.

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:

4,500/4,500
4,650/4,600