These Ken-Rad 6V6GT tubes feature matching date codes of "748" and black glass. One of the tubes is slightly crooked in it's base, but it came from the factory like this and has no impact on performance. Minimum transconductance (Gm) on the Amplitrex tester is 2.9 and NOS tubes typically test around 4.1. These tubes test at 3.3 and 3.8, with plate current nicely matched at 38.6 and 40.8mA.

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!