(!!!) (BEST PAIR #2) 47 RCA branded ARCTURUS NOS 1940”s (40ma and 40.2ma)

1 platinum pair) 47 RCA branded ARCTURUS NOS 1940”s

1 tube) 40.2ma Gm=3000

1 tube) 40.0ma Gm=2800 slightly tilted glass

NOS Ma range 26-31ma

NOS Gm range 2300-2500

(2.5 watts)

(2.5V filament)