Strong Code Pair Telefunken Germany ECC81 12AT7 Grey Plates Serious Tubes R773 Description Every Pin is Closely Inspected and Thoroughly Cleaned. Clean Pins; Clean Contact; Clean Sound! Manufacturer: Telefunken Western Germany Type: Pair ECC81/12AT7 Plate(s): Grey Getter: Top Slant Halo Micas: Two Silkscreen: 95% Engraved Base: no Visible Codes: zb and impressed diamond underbase Mutual Conductance: 4500/3400gm and 3100/3200gm where 2500gm is minimum Thoroughly Tested for Gas, Shorts, Life, Noise and Mutual Conductance(Where Applicable).One Hundred Percent Guaranteed Tubes! Combined Shipping! 30 Day Hassle Free Returns! Excellent Customer Service! Shipped Within 24 Hours! Click images to enlarge Shipping I do combine shipping. If you are an International Customer, please contact me with your intentions BEFORE YOU CHECK OUT. The terms are fairly basic. If your order is less than 8 ounces(with packaging), you will only be charged the initial postage(for one). I can generally fit six or so smaller tubes, or two larger ones in the packaging and still come in under 8 ounces. If it exceeds 8 ounces I will work with you on the cost of postage. Just PLEASE LET ME KNOW BEFORE YOU PAY. I will send you a revised invoice indicating the adjusted shipping costs. I pack my tubes in a sturdy 7X6X5 box, utilizing quality packing paper, bubble wrap and tape. This packaging weighs 4 ounces on its own, and I will not cut back on that to save space/money. The tubes need to get to you in one piece. About Us Im a bit Old School, and prefer a handshake to a click. But this the way of the world now. So I try to incorporate as much personal service as I can through the means at hand. I see and handle every tube that comes through this store. If a mistake is made(and it does happen), I immediately own up to it and take care of the problem as fast and thoroughly as possible. We now have some more space allocated to our lab, where we test every tube on one of a growing number of excellent tube testers, including a Hickok TV-10A/U, Hickok 539C, Hickok 6000A and a Heathkit IT-17. And we finally have a warehouse(Thank God)! We are always looking to buy more tubes. Large collections, small collections, it doesnt matter. If you have some to sell, let me know, and well see if we can work something out. As always, please feel free to ask any questions you might have. Looking forward to hearing from you, Dan. Get images that make Supersized seem small.Showcase your items with Auctivas Listing Templates! THE simple solution for eBay sellers. Track Page Views WithAuctivas Counter