Made in Sweden by Standard Radio under RCA's licence (1950s).
Dark brown base, Muddy black plate included five supports around the plate, No hole on plate, Triple mica and double D-Getter.
One of singular of Swedish tubes ever made. One of the top 6SL7s in the world.
Nos, Never been used. Matched pair and quad are available. See more picture
Made in Sweden by Standard Radio under RCA's licence (1950s).
Dark brown base, Muddy black plate included five supports around.
No hole on plate, Triple mica and double D-Getter.
One of singular of Swedish tubes ever made. In the top-five list of most wanted 6SN7 tubes
Nos, unused but no original box. Matched pair and quad are available.
Made in USA by Sylvania.
Round muddy black plate. Bottom D-Getter.
Nos but no box. Packed in white box.
Made in USA by Sylvania.
Metal base, half silver tube. Great of 6SL7 ever made in USA. One of the most treasured of the 6SL7 types and are characterized by excellent low level detail resolution, very immediate sounding with a lot of lower level slam. This version is very very rare.
Nos but no box. Packed in white box. Matched pair are available