These tubes are genuine NOS (new old stock) GE 6KD6 tubes in their original boxes, and feature identical date codes for ideal performance. They're untested due to time constraints, but we'll gladly take them back for a full refund if you're unhappy in any way!

RETURNS: I will gladly take your tube(s) back for a full refund if you're unhappy for any reason. Yes, it's that simple! Please note that I reserve the right to issue partial refunds if tubes are missing, damaged, or without original boxes (when applicable).

OTHER TUBES FOR SALE:  I have many premium tubes for sale and will combine shipping if you buy multiple items.  Click the links below to see what else is available!