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ESW501

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ID = 29914
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Developer: Ediswan, Siemens Edison Swan Electric Co.; London 
Tube type:  Transmitting Triode, air cooled   Text 
  Ca. 1925 up to 1945 rare.
Identical to ESW501 = CV1621 = VT130_GPO

Was used by Transmittertube (Radio)
Filament Vf 6 Volts / If 4 Ampere / Direct / Specified voltage AND current AC/DC
Description

Anode voltage 1500. Anode dissipation 60 watts. Tube designed specifically for short wave use up to very high frequencies and down to five meters. The anode is graphite, making this tube suitable for small dimensions. Also available with the Mazda brand name.

 
Dimensions (WHD)
incl. pins / tip
x 215 x 58 mm / x 8.46 x 2.28 inch
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 349, pages 817 & 818
- - Manufacturers Literature   August 1948

ediswan_esw501~~2.png ESW501: Fin Stewart
Fin Stewart

esw501data1.png
ESW501: own collection
Peter den Boer

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