skrodahlThese puppies just showed up, all the way from Smolensk in Russia. They are 6S2S (C is the Cyrillic letter for S), which is one of the models that are compatible with 6J5. Others that will also work with the BSTRD are L63, VT-94 and 38565J.
From Russia with Valves
A project log for The Muffsy BSTRD - Class A Valve Preamp
An open source Class-A valve preamplifier and regulated PSU, complete with Eagle project files and detailed Bill of Materials
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