Made in Hamburg - W.Germany by Valvo.
Gold pins, Pinched Waist and O-Getter with double support. One of the earliest 12AT7 in the world was introduced by Valvo. One of three highest grade 12AT7s (GEC A2900, Valvo 6021 Pinched Waist and Telefinken ECC801S). Great bass control and sweet midrange, very musical. Long life tube. Nos in box. Please see the CODE
Made in W.Germany by Siemens & Halske.
Special version. The plate of this version have 2 side holes, Triple mica, Copper supports.
Very rare and nice tube. High stableness and very low noise.
Nos in original box. Matched pair are available
Made in W.Germany by Telefunken.
Diamond logo on the bottom. The premium of ECC82s.
Long ribbed plates with two silver wings on each side.
Low noise, balance and detail sounding. Best of ECC82s in the World.
Nos in original box.
Made in W.Germany by Siemens.
Long plate version (17mm). Triple mica and O-getter with douple support.
One of the best version from Siemens. Very balanced and detailed sounding.
Very hard to find today.
Nos in original box.
Made in W.Germany by Siemens & Halske.
Triple mica and O-getter with douple support.
One of the great version from Siemens. Very balanced and detailed sounding.
Great 12AU7s. Hard to find today.
Nos in original box.
Made in W.Germany by Telefunken (ULM Factory).
Obviously it has Diamond logo. Short frame plate. This is the most sought after 12AX7 variant in the world. Thi version is a special quality – long life 12AX7 (more than 50.000 hours) that is considered by many audiophiles the Best 12AX7 Ever Made.
Nos in original box. Matched pair are available.