Commonly referred to as the Siemens EL34, these tubes were made by RFT in East Germany and rebranded by many other companies including Siemens and Telefunken. I bought these as NOS and have tested them only a couple of hours in my amp beyond the testing done by the dealer. They sound wonderful and hold bias perfectly. They have the characteristic slim profile, 4 vertical holes in each plate-side and dimple on the glass top. They are new old stock bought from a reputable dealer. They were checked for shorts, gas and microphonics and are matched for plate current. Packaged in the original bulk-pack cardboard sleeves and white boxes with test numbers on the labels. Free priority mail shipping in the U.S. and no fee for Paypal.
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