(!!) (Pair) 6GK6 Canada probably by Philips Canada, Holland style construction 1960”s used/good (45ma and 46.5ma)

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

1 tube) 45.0ma Gm=10,400 no printing

1 tube) 46.5ma Gm=10,100 branded Viking Electronics

Good Ma range 45-50ma

Good Gm range 10,000-11,000

for:

Swan 350 radio
Setchell Carlson console
Berning