Antique radios, Old Time Radios
E280F
Country:
Europe
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Identical to |
E280F
= 7722
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Similar
Tubes |
Other characteristic (electr. data):
7721
; D3a
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Base |
Noval, 9 pin miniature (USA pico-9) B9A (Codex=Noval)
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Filament |
Vf 6.3 Volts / If 0.315 Ampere / Indirect / Specified voltage AC/DC |
Description |
Special quality wideband RF amplifier with a gm of 26mA/V at Ia of 20mA.
Text in other
languages (may
differ)
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Tube prices |
7 Tube prices (visible for members
only)
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Information source |
-- Collector info (Sammler) Siemens Bereich Röhren Taschenbuch 1972
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E280F: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
More ...
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E280F: Ratheiser RTH,3.Aufl.,1964
Egon Penker
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Just Qvigstad
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E280F: Ratheiser RTH,3.Aufl.,1964
Egon Penker
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):23
Collection of
Collection of a member from D Collection of a member from D
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