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R663

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ID = 25344
       
Country:
France
Brand: Dario (tubes) - voir aussi La Radiotechnique
Tube type:  TRIODE (Detail uncertain)   Audio Frequency 
Identical to R663

Filament Vf 0.6 Volts / If 1 Ampere
Description

LF amplification (resistive).

 
Text in other languages (may differ)

f_dario_r663_data.png
R663: La Nature 1930
Mark Hippenstiel

 

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