Antique radios, Old Time Radios
227_Royal
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Country:
United States of America (USA)
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| Identical to |
227_Royal
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| Base |
SPECIAL TUBEBASE in general
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2.5 Volts / If 1.75 Ampere / Indirect / Specified voltage AC/DC |
| Description |
This tube used the replaceable filament invented by Clara Quinn. It consisted of a hairpin filament mounted on a removable section of the UY bakelite base. See manufacturers page.
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Dimensions (WHD)
incl. pins / tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Weight |
47 g / 1.66 oz |
| Information source |
-- Collector info (Sammler)
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