You are bidding for One Pair Standard 33S30B B65 5692 6SN7 6SN7GTA NOS Tightly Matched Tested NOS at over 100/50 min good (NOS 77-78= 100%) and on my AVO CT160 as shown in the photos. All the tubes were taken out from a carton box of 100 pieces. I sold most of them to China, Hongkong and Japan. The tubes were quite rare, made in Sweden. These tubes are ranked top of the list among 6SN7 series with their durability and sounding quality. They are in excellent condition. I tested them on my system and they sound awsome. I don’t guarantee testing values on other tube tested except for TV-7 and AVO and not responsible for their performance on you amplifier. Return is accepted if you pay return shipping fees. So please ask me any question if you are unsure. I pack the tubes safely and carefully with wrapping paper and foams. However, I am not responsible for any damages during shipment. Local pick up or do-it-yourself shipping is welcome. What you see is what you get. Thanks

P/S: The shipping fees in the listing is by regular mail

(normally Vietnam post) taking from 12-25 days depending on buyers' local

customs. To some regions, it can take even longer than that. Besides, Vietnam

post is not always available to some countries in South America, Northern

Europe or Africa. Please ask me before paying. If you want to use express

shipping services like DHL, Fedex or UPS express taking 3-7 working days, you

have to pay an extra of around $60. Please let me know so that I can send you

an invoice. If the item(s) purchased may not arrive or be faulty, please don't

hesitate to contact me before opening cases on Ebay. I am more than willing to

reach to a solution and make you completely satisfied. Thanks a million