I have several CV491 (Military Specification Version of the 12AU7/ECC82) vacuum tubes made in England in 1958 with Long Plate and Square Getter.Never used NOS in bulk pack and will ship in generic white box. $85 for one tube. This tube has "KB/FD" code, which indicates it is made by STC (Standard Telephone & Cable Co.) in Rochester England. Also, "PB" indicates it is made in February 1958. It's sound is punchy, dynamic, transparent with a touch of midrange warmth. I guarantee excellent performance, so buy with confidence. If you are not satisfied with my tubes for any reason, I will issue full refund for your purchase price. Payment by check or money order only (no Paypal please). Local pickup is always welcome. USPS First Class Mail shipping within US with tracking is $4 flat. I have over 400 100% positive feedback on Audiogon with the same member ID - "sojs", so buy with confidence. 
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