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XFW40

Information - Help 
ID = 49993
       
Country:
Great Britain (UK)
Brand: Hivac Ltd.; Harrow-on-the-Hill
Developer: Hivac Ltd.; Harrow-on-the-Hill 
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to XFW40
Similar Tubes
Normally replaceable-slightly different:
  CV2260 ; DF64 ; O2DF

Base Subminiatur (wire-ends, flat) B5A Wires only.
Filament Vf 0.625 Volts / If 0.01 Ampere / Direct / Battery =
Description

For Hearing Aid use.

 
Information source - - Manufacturers Literature   

uk_hivac_xfw40_anwdg.png
XFW40: Ausschnitt aus Schltg. Tecla Pocket Radio
Karl-Heinz Entrich † 7.21
    More ...
xfw40_sockelbild.png XFW40: RTT
Stefan Müller


Just Qvigstad
xfw40_characteristics.png
XFW40: My schematic collection.
Pier Antonio Aluffi

Usage in Models 1= 1953? ; 1= 1955? ; 3= 1955

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Collection of

 
hivac_xfw40.jpg

XFW40
 

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