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NZ4200

Information - Help 
ID = 2556
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Tube type:  Double Triode   Audio Frequency 
Identical to NZ4200
Similar Tubes
Normally replaceable-slightly different:
  RENZ2104
First year 1930 Tube leaflet collection E.Erb Analysis by original leaflets

Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Direct / Parallel, (AC/DC)
 
nz4200.png
NZ4200: TFK
Wolfgang Holtmann

 
nz4200_daten_kennl.png
NZ4200: Valvo Daten Heft 1930
Trev Levick


Usage in Models 1= 1929 ; 1= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

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