Description

BEAUTIFUL NIB GE made / rebranded National 6201 Twin Triode tube. The 6201 / 12AT7WA / 12AT7WB is a Military / Communications grade equivalent of the standard 12AT7 / ECC81 Family of tubes and can be used a direct substitute with excellent results. They were made with high-grade components and less prone to noise and microphonics. This tube was made in the USA and features short, grey plates with Triple Mica construction and a top-mounted, slanted / angled "D" getter. Very CLEAN tube with clear lettering and nice straight pins. Test VERY STRONG! Results (mhos): 5,600 (102%) / 5,870 (106%) Average NEW / NOS spec for this type is 5,500 (100%) / 5,500 (100%). Comprehensive computer-generated results sheets included! A little bit about me and my valve testing business..... I started in the tube business as a small hobby in 2012 testing and selling a few small radio tubes. Now it has turned into a big hobby as I have sold 1000's and 1,000's of tubes to many happy customers. I personally inspect and fully test each tube and offer a 30-day unconditional 100% guarantee on all my tested tubes. I am not a store or full-time business, but I take great pride and care in what I do, and your satisfaction is my number one goal. I have two of the best tube testers ever made that I use to fully test tubes. The Amplitrex AT-1000 Digital tester and the Triplett 3444 (with digital plate current meter) Tube Analyzer are both mutual conductance testers that can test just about any tube ever made between the two of them and can test for shorts/leakage, noise, gas, emissions, and transconductance. I have an extensive back stock of tubes, so if you have a certain brand or type you are looking for, feel free to contact me. Thank you for choosing Valves-Tubes!