RT EF86 / 6267 - mesh plates, matched pair

This 1961 RT EF86 / 6267 tube has mesh plates and a halo getter. The white print on the glass has the Amperex Bugle Boy label in excellent condition. Tube tests as new with high gain and low noise.

The 1960s Valvo EF86 tubes in this precisely matched pair have mesh plates and halo getters. The white label has the Valvo logo and the Hamburg factory code is etched in the glass. Both tubes test as new with very low noise and are precisely matched.