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PTT10F

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ID = 49865
       
Country:
France
Brand: SIF (S.I.F.), Société Indépendante de Télégraphie sans Fil; Paris, Malakoff
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to PTT10F

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Direct
Description Telephony repeater tube. 
Dimensions (WHD)
incl. pins / tip
52 x 113 x 32 mm / 2.05 x 4.45 x 1.26 inch
Weight 61 g / 2.15 oz
Information source - - -   
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b4_base_pins~~566.png PTT10F: Fin Stewart
Fin Stewart


Just Qvigstad

Collection of

 
p.t.t.10fsifs.i.f.stindpendancefranaise_3_klein_klein.jpg

PTT10F
 

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