12AX7 / ECC83 / 7025 tubes

This 1959 CBS 7025 is a low noise 12AX7 tube type. It has long gray plates and a horseshoe getter. The red print on the glass has the CBS logo. Tube tests as new with balanced section and phono grade noise levels.

This Ei ECC83 / 12AX7 tube was made in pre-war Yugoslavia and labeled for other companies. It has smooth gray plates and a halo getter, just like the famed Telefunken 12AX7 tube it was modeled after. Tube tests as new with phono grade noise levels.

The Ei ECC83 / 12AX7 tubes in these precisely matched pairs were made in pre-war Yugoslavia and labeled for Audio Research. They have smooth gray plates, just like the famed Telefunken 12AX7 tubes they were modeled after.

This 1970s military spec Sylvania 12AX7WA tube has long gray plates with copper grid posts and a halo getter. The green print on the glass reads "JAN 12AX7WA" Tube tests as new with preamp grade noise quality.

The 1965 Tung-Sol 12AX7A tubes in this precisely matched pair have long gray plates and halo getters. The white labels on the glass have the Tung-Sol logo. Both tubes test as new with phono grade noise levels.