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MX40_Fotos

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ID = 20032
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Dual-Grid Tetrode   Frequency converter 
Identical to MX40_Fotos
Similar Tubes
Normally replaceable-slightly different:
  A441N_5pin ; BG4 ; DG407/0 ; DZ1 ; PM4DG ; R43M ; TA31
Other base:
  A441
First Source (s)
Aug.1930 : Philips - Radio TV and Home Entertainment Catalogs R1164, p. 34
Base French Bigrille 5 pin (D)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.12 Ampere / Direct / Battery =
Description

Mit Bigrille-Sockel hauptsächlich in Französischen Radios der 20er Jahre zu finden.

 
Information source - - Manufacturers Literature   2-9-1933
Röhren-Vademecum; P.H. Brans; Antwerpen   p. 51
tubeenvdiag_klein_mod_bigr_3.gif
MX40_Fotos: DRB 55
Wolfgang Holtmann
tubesockel_klein_bigrillem_5.gif MX40_Fotos: W.Holtmann
Wolfgang Holtmann
miniwattsmall2_6.png
MX40_Fotos: own collection
Peter den Boer
Usage in Models 1= 1926? ; 1= 1927?? ; 1= 1927? ; 1= 1927 ; 1= 1930
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Collection of

Bruno Candreia (CH)
Christian ADAM (F)
Collection of a member from D
Peter Kovacs (CH)
Reinhard Riek (D)
 
rfgavl40mx40.jpg

MX40_Fotos
 
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