Antique radios, Old Time Radios
931VA
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Country:
United States of America (USA)
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| Identical to |
931VA
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| Similar
Tubes |
Normally replaceable-slightly different:
27M1
; 931A
; CV2696
; CV337
; GL931A
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| Base |
Sub-Magnal 11 pin
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| Was used by |
Technology / Measurement |
| Filament |
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| Description |
Non-hygroscopic base version of the 931A.
9 stage Photo-multiplier.
Va<950, Ia<1mA. Current Gain 1,000,000 with 100V per stage.
Peak spectral response 4500 Å.
Base 11pin Sub Magnal
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Dimensions (WHD)
incl. pins / tip |
33 x 94 x mm / 1.30 x 3.70 x inch |
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Just Qvigstad
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Collection of
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| Data Compliance |
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