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G-59B

Information - Aide 
ID = 78605
       
Pays:
Etats-Unis
Fabricant: Majestic tubes of Grigsby-Grunow
Concepteur: Majestic tubes of Grigsby-Grunow 
Type:  Vacuum Pentode   Power/Output 
Identique à G-59B
Similaires
Autres raccordements :
  59

Culot 7-Pin-Base U7B = medium, old, USA
Utilisé par Radio/TV-reception etc.
Chauffage Vf 2.5 Volt / If 2 Ampère / Direct / Specified voltage AC/DC
Description

This tube was only made by Majestic and is not interchangeable with any other type. It is a triple grid power amplifier type. It differs from the 59 in that it has a direct filament. The base pin where the cathode would be utilised as in the type 59, is not used.

Acording to Tube Lore II, p. 28, the tube was available with a spray shielded bulb.

 
Dimensions
(l x h x p)
incl.pins/tip
x 135 x 52 mm / x 5.31 x 2.05 inch
Bibliographie 70 Years of Radiotubes and V.   p. 180
Tube Lore (II)   p. 28

majestic_g_59b_pins.png G-59B: Fin Stewart
Fin Stewart


Just Qvigstad
 
majestic_g_59b_tube_bm.jpg

 

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