Here is a new old stock, new in box Lot of Two (2) 12W6GT tubes for your needs.  RCA tube has a bottom side halo getter and the Sylvania has a top halo getter 
(see pics).  These are two 12W6GT tubes, not matching pairs.

Shipping is USPS Ground Advantage with tracking in the United States; Priority Mail delivery is an option.  International sales via International Shipping service.  

Package weighs six (6) ounces.

Check our store for other types of tubes your equipment needs.

Combined shipping always welcome.

TUBES ARE GUARANTEED GOOD AND IN WORKING ORDER AT SHIPMENT. TRANSIT VIA POST CAN DAMAGE TUBES.  THIS IS NO FAULT OF OURS BUT THE THIRD PARTY ENTITY 

THAT IS DELIVERING ITEM(S) TO YOU, I.E, USPS, UPS, FEDEX, YOUR NATIONAL CARRIER IF INTERNATIONAL, ETC. PLEASE INSURE THEM! WE CANNOT GUARANTEE FAILURES ON 

YOUR EQUIPMENT AFTER POWER UP AS THERE IS NO WAY TO ASCERTAIN HOW TUBES WILL INTERACT WITH YOUR ELECTRONICS; NOR IS THERE A WAY TO DETERMINE 

WHETHER THEY MAY HAVE FATAL FLAWS IN TUBES THEMSELVES!  THESE ARE USED VACUUM TUBES AND TIME MAY HAVE TAKEN A TOLL ON THEM OVER THE MANY YEARS SINCE 

THEY WERE MANUFACTURED. WE CAN ONLY TEST FOR THE PARAMETERS MENTIONED ABOVE IN ONE OR MORE OF THE FOLLOWING EQUIPMENT WE USE FOR MEASURING:  

TV-7/U, JACKSON 648 & MAXI MATCHER 2.