Radios antiguas y Radios de Colección
VCR97
| Base |
Europe side contact 12, P12 (for CRT) (Codex=Qa)
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| Filamento |
Vf 4 Volt / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Descripción |
6 inches general purpose green Willemite phosphor CRT; electrostatic focus and deflection. First used in 1940 in ASV Range Amplitude Display.
The most popular self-build TV tube in the 1940s. See for example the Premier Radio Televisor for a kit TV.
Neck diameter 62mm
Face diameter 155mm
Length without base 415mm (increase with base 5mm)
Maximum viewable picture with a 4:3 aspect ratio 120mm diagonal. Actually a 5inch picture although if the picture size is increased so as to wrap around the curved front of the tube somewhat there is enough phosphor to display a picture of 6inch diagonal as specified for the televisor.
Note that the aspect ratio was 5:4 in 1948 and was changed to 4:3 in 1950.
Note also that a mu-metal shield is required for this picture tube.
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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
155 x 155 x 415 mm / 6.10 x 6.10 x 16.34 inch |
| Literatura |
Taschenbuch zum Röhren-Codex 1948/49
-- Original-techn. papers.
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VCR97: Manufacturer's Literature
Emilio Ciardiello
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