12AX7 / ECC83 / 7025 tubes

The 1964-65 Amperex Bugle Boy 12AX7 / ECC83 tubes in this precisely matched pair have halo getters. They have white Bugle Boy labels and the Heerlen, Holland factory code is etched in the glass. Both tubes test as new with phono grade noise levels.

This 1965 Amperex Bugle Boy 12AX7 / ECC83 tube has gray plates and a large halo getter (I65 series). It has the famous Bugle Boy label. The Heerlen, Holland factory code is etched in the glass. Tube tests as new with phono/V1 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. Click "more info" for current availability.

This late 1950s-early 1960s Sylvania 12AX7 tube has long gray plates with copper grid posts and a halo getter. The yellowprint on the glass has the Sylvania logo. Tube tests a new with preamp grade noise levels.

The 1961 Telefunken 12AX7 / ECC83 tubes in this precisely matched pair have ribbed plates. The white labels have the Telefunken logo with matching date codes. The diamond imprint is stamped in the bases. Both tubes test as new with phono grade noise level

The 1964-65 Telefunken 12AX7 / ECC83 tubes in this precisely matched pair have smooth plates and the diamond imprint in the base. The white labels have the Dynaco logo. Both tubes test as new with balanced sections and phono grade noise levels.