Basement clean out: Octal pre-amp tubes

[cartoonweirdo]

Here are the octal base pre-amp tubes. As usual everything is assumed to be used, and is made in the USA unless otherwise noted.

This list has been edited as people buy tubes.

6SN7W
No brand visible, black base
....$3

two 6SN7GT
Sylvania, Ken-Rad, black bases
....$5

two 6SN7GTA:
One Rayethon, One Silvertone, black bases
...$5 ea

Two 6SJ7GT:
Sylvania, Rayethon, Metal bases
...$3 ea

12SQ7:
Rayethon, Metal base
...$3