Here are the specs for the 6922.
Filament 6.3, Grid 13, Plate 60, Levers 45121 45111,
V 2, S 2, Leak 23 78,3&8 are underlined to hold the H-K leak button down at the same time as you depress them.
Merit buttons 1 & 6.
Filament 6.3, Grid 13, Plate 60, Levers 45121 45111,
V 2, S 2, Leak 23 78,3&8 are underlined to hold the H-K leak button down at the same time as you depress them.
Merit buttons 1 & 6.