Antique radios, Old Time Radios
490X
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Country:
Great Britain (UK)
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| Identical to |
490X
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| Similar
Tubes |
Normally replaceable-slightly different:
VCRX340
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| Predecessor Tubes |
VCRX340
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| Was used by |
Technology / Measurement |
| Filament |
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| Description |
This is an analogue multiplier tube for multiplying two signals up to several kilohertz.
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| Information source |
- - Manufacturers Literature catalogue 1962-1963
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line up.
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| Data Compliance |
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