Antique radios, Old Time Radios
VEL11
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Country:
Germany
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| Identical to |
VEL11
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| Similar
Tubes |
Heater different:
UEL11
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| First year |
1947
Tube leaflet collection E.Erb Analysis by original leaflets
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| First Source
(s) |
1946 : Funk-Technik (FT) # 2
Jan.1947 : Funkschau # 2
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| Predecessor Tubes |
VCL11
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Successor Tubes
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1948
UEL11
UEL71
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| Base |
German Steel Y8A, 1938 (Codex=R)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 90 Volts / If 0.05 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
| Description |
In der kargen Nachkriegszeit war der Bedarf an kostengünstigen Empfängern besonders groß.
Hierzu erschien Ende 1946, Anfang 1947, die Verbundröhre VEL11, bestehend aus einer HF- Tetrode und einer Endtetrode, womit der Bau sparsamer Einkreis- Empfänger mit brauchbarer Qualität möglich wurde.
Die VEL11 überwand die Mängel der VCL11, hatte eine deutlich höhere Empfindlichkeit wie auch größere Sprechleistung.
In ihrer Gesamtleistung übertraf sie die VF7 und VL1 zusammen. [JR]
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| Tube prices |
5 Tube prices (visible for members
only)
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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| Tube Tester Data |
Avo CT160 |
VEL11: Radiomuseum Org
Egon Strampe
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VEL11: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
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Just Qvigstad
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VEL11: 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):59
Collection of
Collection of a member from D |
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Forum contributions about this tube
VEL11
Threads: 1 | Posts: 1
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Hits: 3735 Replies: 0
VEL11 Tetrode curve families
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Joe Sousa
24.Aug.10
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1
Fellow radiophiles,
I took the following curve families from the VEL11 by Telefunken that came with my Grundig Gloria 51GW.
Tube emission seems pretty good because the power tetrode section is rated to draw 22mA with G1=-6V and G2=200V, and this specification point is met at the far right of the sixth curve from the top in the first plot.
The power tetrode section with 200V and 100V at G2
 
The detector tetrode section with 20V and 30V at G2
 
These curves suggest that the detector tetrode is constructed as a classic tetrode, while the power tetrode has no kink and has the sharp knee that is typical of beam tetrodes.
Best regards,
-Joe
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VEL11
End of forum contributions about this tube
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