(!!) (Pair) 6GK6 Canada probably by Philips Canada, Holland style construction 1960”s used/good (50ma and 52ma)

1 matched pair) 6GK6 Canada probably by Philips Canada, Holland style construction 1960”s used/good

1 tube) 50ma Gm=10,600 Viking electronics – some printing

1 tube) 52ma Gm=11,200 no printing

Good Ma range 45-50ma

Good Gm range 10,000-11,000

for:

Swan 350 radio
Setchell Carlson console
Berning