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H4125D

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ID = 12760
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to H4125D = E445 = RENS1214 = VMS4 = AS4104
Similar Tubes
Normally replaceable-slightly different:
  S415N ; S431N
First year 1932 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Sep.1932 : Funk Bastler 1932, Heft 41

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Tube prices 2 Tube prices (visible for members only)
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 179, p. 310
Taschenbuch zum Röhren-Codex 1948/49   

9_23.png H4125D: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
vv34_32.png
H4125D: Valvo-Röhren-Daten 1934
Jacob Roschy

Usage in Models 3= 1932 ; 1= 1933

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4

Collection of

 
h4125d_valvo.jpg

H4125D
 

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