Made in USA by RCA.
The last of Special Red Version
Red metal tube. Similar to 6SJ7 type.
Nos in original box.
Matched pair are available

Made in USA by General Electric (1970s).  

Gray plate and O-Getter.

Nos in original box. Matched pair and quad are available.

Made in USA by RCA (1950s).  

Black plate. Side O-Getter.

Nos in original box. Matched pair and quad are available.

Made in USA by Sylvania.  

Black plate and O-Getter.

Used. Tested good. Matched pair and quad are available.

Made in G.Britain.
This is the silver mesh plate version, Clear glass.
Nearly same as 6J5 type. Very great for Pre or Driver tubes

Nos in original box. Matched pair are available.

Made in USA by Tung-Sol.
This is the silver mesh plate version, Clear glass.
Nearly same as 6J5 type. Very great for Pre or Driver tubes

Nos in original box. Matched pair are available.

Made in G.Britain.
This is gray plate, black base version, Clear glass.
This type is a half of the 6SN7 type with very nice sounding.

Nos in original box. Matched pair are available.