For Sale: Two SED Svetlana Winged C 12AX7 "silver boxed anode" tubes. These are not the recent reissues. I purchased these from Langrex December 2017 and put them in my amp to verify that they work. I have not used them since, so they only have a few hours on them. I have not had a 12AX7 amp for a while or a way to test them, but they worked fine when I did use them.
$35 shipped for the pair in the continental USA.
$35 shipped for the pair in the continental USA.