Made in W.Germany by Siemens.
Triple mica and O-getter with douple support. One of the great version from Siemens.
Very balanced and detailed sounding. Super low noise and quiet. Great for Phono.
One of the best 12AX7s. Hard to find today.
Nos in original box. Matched pair and quad are available.
Made in W.Germany by Siemens & Halske (1968).
Long plate version. Triple mica and O-getter with douple supports.
Best version from Siemens. Very balanced and detailed sounding. Hard to find in this time.
Nos in original box. Matched pair are available
Made in W.Germany by Siemens & Halske (1968).
Long plate version. Triple mica and O-getter with single supports. Copper grid.
Great version from Siemens. Very balanced and detailed sounding. Hard to find in this time.
Nos in original box. Matched pair are available.
Made in Germany by Siemens.
Long Smooth Plate, O-Getter.
Special military 12AU7s. Very nice tubes.
Nos in original box. Matched pair and quad are available.
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