Antique radios, Old Time Radios
U521T
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Country:
Europe
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| Identical to |
U521T
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| Similar
Tubes |
Different connections:
U52
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 5 Volts / If 3 Ampere / Direct / Specified voltage AC/DC |
| Description |
Va<500V rms. Ia <250mA mean.
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| Information source |
-- Collector info (Sammler)
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Just Qvigstad
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