Antique radios, Old Time Radios
R250_Rectron
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Country:
Germany
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| Identical to |
R250_Rectron
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| Similar
Tubes |
Normally replaceable-slightly different:
1701
; G2340
; R250
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| First year |
1928
-- Original-techn. papers. Ad from 1928 with description
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| First Source
(s) |
Mar.1929 : Funk Bastler 1929, Heft 9
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 1.8 Volts / If 2.8 Ampere / Direct / Specified voltage 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.
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| Information source |
Arlt's grosser Radiokatalog 1930 p.64
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R250_Rectron: Sammlung GJ
Anonymous 544 Collector
More ...
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R250_Rectron: rtt
Anonymous 10 Collector
More ...
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Just Qvigstad
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R250_Rectron: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4
Collection of
Collection of a member from D |
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Variants
The Rectron R250 was first made with a tip.
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