Antique radios, Old Time Radios
CV3998
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Country:
Great Britain (UK)
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| Identical to |
CV3998
= 5A/170K
= E180F
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
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| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Special Quality Valve. RF Pentode with gm of 16.5. Triode connected, it achieves gm of 21mA/V.
Specied by UK's General Post Office.
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| Information source |
-- Original-techn. papers.
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CV3998: rtt
Anonymous 10 Collector
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Just Qvigstad
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Collection of
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