Antique radios, Old Time Radios
VT18_GPO
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Country:
Great Britain (UK)
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| Identical to |
VT18_GPO
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| Was used by |
Telephony |
| Filament |
Direct |
| Description |
Transmitting tube designed in 1922 for use by the British Post Office. No other details available.
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| Information source |
British Radio Valves - The Vintage Years: 1904-1925 Pages 83 and 133
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