Selling an RCA 12AU7A Cleartop tube with the Original Box. This tube has earlier "D" getter and slightly longer plates. The date code "AV" signifies that the tube was made in November 1965.Unlike most of the similar high-priced cleartop tube sold here, this tube has almost perfect lettering. This tube was purchased 10 years ago from one of the best sellers in the tube business. After extensive testing he would test the tube in 2 different pieces of equipment, to test for noise and microphonics. This is one of his "Platinum Grade" tubes, useable in any phono/preamplifier or amplifier application. I guarantee that it meets the stated requirements. Please note that I never used this tube. It has been carefully stored in my tube stash.
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