Antique radios, Old Time Radios
688
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Country:
United States of America (USA)
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| Identical to |
688
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| First year |
1932
Radio News Sep 1932
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Filament |
--/-- |
| Description |
Peak sensitivity at 3500 Angström. 45 microamps-lumen.
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Dimensions (WHD)
incl. pins / tip |
30 x 107 x mm / 1.18 x 4.21 x inch |
| Information source |
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Just Qvigstad
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