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(!!!) (BEST PAIR #3) 47 RCA branded ARCTURUS NOS 1940's (40ma and 40.2ma)

(!!!) (BEST PAIR #3) 47 RCA branded ARCTURUS NOS 1940's (40ma and 40.2ma)

$ 69.99

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)

See more: vacuum tube
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