Antique radios, Old Time Radios

150BTB31
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Country:
Japan
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| Identical to |
150BTB31
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| Was used by |
Technology / Measurement |
| Filament |
Vf 6.3 Volts / Indirect |
| Description |
5" rectangular CRT. With front graticule, P31 high intensity phosphor.
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| Information source |
-- Collector info (Sammler)
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):10
Collection of
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