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R250_Rectron

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ID = 20101
       
Country:
Germany
Brand: Rectron GmbH; Berlin S59
Tube type:  Full-Wave Rectifier inert gas filled   Power-supply 
Identical to R250_Rectron
Similar Tubes
Normally replaceable-slightly different:
  1701 ; G2340 ; R250
First year 1928 -- Original-techn. papers. Ad from 1928 with description
First Source (s)
Mar.1929 : Funk Bastler 1929, Heft 9

Base Europe 4-Pin (A, 4A, B4, since 1914)
Was used by Radio/TV-reception etc.
Filament Vf 1.8 Volts / If 2.8 Ampere / Direct / Parallel, (AC/DC)
Description

Gemäss Rectron-Anzeige von 1928 (siehe Firmenbilder) leistet die Röhre bei 2 x 340 V eff. Anodenspannung bei 100 mA Belastung über 400 Volt Gleichspannung. Höchstzulässige Belastung 300 mA mit max. Spannung 350 V am Ladekondensator ("Ausgleichskondensator"). Die Röhren haben dann den Pumpstutzen oben, also ein Spitzli.

 
Literature Arlt's grosser Radiokatalog 1930   p.64
  d_rectron_1928_s11.png
  R250_Rectron: Sammlung GJ
Anonymous 544 Collector
 
rectron_r250.jpg
R250_Rectron: W.E.
Wolfgang Eckardt

 
g2340_so~~5.png
R250_Rectron: rtt
Michael Schlör

 
r250_spec.png
R250_Rectron: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 1= 1929? ; 3= 1929

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


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