Radios antiguas y Radios de Colección
VEL11
País:
Alemania
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Idéntica a |
VEL11
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Válvulas similares |
Heater different:
UEL11
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Primera serie |
1947
Tube leaflet collection E.Erb Analysis by original leaflets
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Fuente principal
(es) |
1946 : Funk-Technik (FT) # 2
Jan.1947 : Funkschau # 2
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Válvulas Predecesoras |
VCL11
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Válvulas Sucesoras
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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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Usada en |
Radio/TV-reception etc. |
Filamento |
Vf 90 Volt / If 0.05 Ampere / Indirect / Specified current AC/DC ~ = (Series working) |
Precios de válvulas |
5 Precios de válvulas (visible
solo para miembros)
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Literatura |
Taschenbuch zum Röhren-Codex 1948/49
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VEL11: Radiomuseum Org
Egon Strampe
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VEL11: RVF-Röhrenbuch-M1,1947
Anónimo 15 Coleccionista
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Just Qvigstad
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VEL11: RVF-Röhrenbuch-M1,1947
Anónimo 15 Coleccionista
Mas ...
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Número de
modelos en Radiomuseum.org con esta
válvula:59
Colección personal de
Colección personal de un miembro de D
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Contribuciones en el Foro acerca de este válvula
VEL11
Hilos: 1 | Mensajes: 1
Entradas: 2728 Réplicas: 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
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