For your consideration. 4 platinum matched NOS Sylvania JAN CHS 6SN7W short glass vacuum tubes with less then 100 hours of use... These are black base, chrome dome "W" tubes from the 1940s.
These tubes are transparent, detailed, 3 dimensional, extended with accurate well defined bass. These are not tubey sounding tubes. These are considered some of the best 6sn7s available. Purchased NEW in February with minimal use. If you can find these new expect to pay $100-$125 each. Steal this quad for $325
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