Antique radios, Old Time Radios
931_Beckman
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| Tube type: |
Screen-grid Tetrode |
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| Identical to |
931_Beckman
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| Similar
Tubes |
Normally replaceable-slightly different:
930_Beckman
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Filament |
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| Description |
Electrometer tube for pH-meter, specially selected for Beckman Instruments.
Text in other
languages (may
differ)
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| Information source |
- - Manufacturers Literature Manual for Beckman pH-meter type G
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
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