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T30_MO

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ID = 28813
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Transmitting Triode, air cooled   Power/Output 
  <1925 very rare. ***
Identical to T30_MO
First year 1922 Saga of the Vacuum Tube, Tyne page 381
First Source (s)
1918 : British Radio Valves - The Vintage Years: 1904-1925 p.69

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Transmittertube (Radio)
Filament Vf 7 Volts / If 1.8 Ampere / Direct / Specified voltage AND current AC/DC
Description

1000V anode voltage; mu 35. 30 watts. First tbe made was tubular measuring 135 mm length and 60 mm width. Design changed to "R" style in 1923/24

 
Dimensions (WHD)
incl. pins / tip
60 x 135 x mm / 2.36 x 5.31 x inch
Information source - - Manufacturers Literature   Marconi catalog No. 520, Sept. 1928
- - Manufacturers Literature   M.O.Valve catalog 1923


Just Qvigstad
t30_spec.png
T30_MO: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

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t30.jpg

T30_MO
 

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