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R121

Information - Help 
ID = 36435
       
Country:
France
Brand: La Radiotechnique (RT); Paris, Suresnes
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to R121
Similar Tubes
Normally replaceable-slightly different:
  1603_octal

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Was used by Technology / Measurement
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Description

Langlebensdauer NF Verstärker Pentode Anti-Mikrofonisch (Poströhre)

 
Text in other languages (may differ)
 
r121_94rm364s.jpg
R121: Collection JR
Jacob Roschy

 
7r_9.png
R121
Emilio Ciardiello

 
r121_doc_resume.png
R121: Technique de l'ingénieur
Patrice Zeissloff


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