I've been cruisin ebay looking for tubes and was able to pick up some new in box blue label Groove Tubes for the Power section and looking for some Gold Series for the Preamp. I've seen a few auctions that state their made in Russia, and some auctions are actually State "12AX7 GrooveTubes by Slovtek". so if these are made by Slovtek are they just plain old Slovtek Tubes with Groove Tubes written on them, or are they made to the specs of the actual Groove Tubes.
No announcement yet.
Groove Tubes made by Slovtek?