2 Vintage Matched
Sylvania
6SN7GTB
Chrome Top
Audio Tubes
NOS NIB

 Buyer gets both of the tubes in the photos.  These tubes were tested in a Hickok Cardmatic tester.  Both of these tubes were made in the USA, by Sylvania, in the 1950's.  These are the chrome top, black triangle plate version.  These are highly sought after audio enthusiasts.  
These are getting scarce and are a high end tube used by most of the professionals.   Great for any audio amplifier.  The tubes will come in their original Sylvania 6SN7GTB boxes, as shown.  These tubes are NOS (New Old Stock).  I will pack carefully & ship very quickly. 

Sylvania codes: CH & DH

Test results:  82/79 & 81/79, whereas a minimum good on this Hickok Cardatic tester is 50/50.  These test very strong & balanced.

International Shipping will be USPS First Class International $22.50 to all Countries.

SHIPPING & HANDLING -  USA:
I will use USPS First Ground Advantage.

International shipping will be done by;  USPS First Class Mail International $22.50

Note: Item will be packed, in a professional manner
and ready to ship, within 1 days of payment.  I have great feedback on my packing.

100% Feedback!  Bid with the utmost confidence!

No Returns!  These are mint, NOS (New Old Stock) tubes!