Antique radios, Old Time Radios
DE5_Marconi
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Country:
Great Britain (UK)
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| Identical to |
DE5_Marconi
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| Similar
Tubes |
Other class quality (otherwise equal):
CV2891
Other characteristic (electr. data):
DE5B
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| First year |
1924
- - Manufacturers Literature Marconi Sales List 1924
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| First Source
(s) |
1924 : British Radio Valves - The Vintage Years: 1904-1925
Oct.1928 : - - Manufacturers Literature Date of Marconi Publication No. 520A.
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 5 Volts / If 0.25 Ampere / Direct / Battery = |
| Description |
One of the first Dull Emitter Tubes and appears on Marconi sales lists in November 1924.
The filament voltage is specified as in the range 5 to 6V and anode voltages from 20 to 60V giving an amplification factor of 7.
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Dimensions (WHD)
incl. pins / tip |
52 x 118 x mm / 2.05 x 4.65 x inch |
| Weight |
50 g / 1.76 oz |
| Information source |
Babani, International Radio Tube Encyclopaedia 1925 Brown Brothers Catalog 217
Saga of the Vacuum Tube, Tyne
- - Manufacturers Literature
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DE5_Marconi: Fin Stewart
Fin Stewart
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Just Qvigstad
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DE5_Marconi: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector
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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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Forum contributions about this tube
DE5_Marconi
Threads: 1 | Posts: 1
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Hits: 2613 Replies: 0
DE5_Marconi (DE5_Marconi)
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Gerhard Eisenbarth
13.Jul.11
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1
Testbericht zur Röhrentype DE5 von Marconi-Osram.
Quelle: The Wireless World and Radio Review, 30.July 1924 Attachments
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DE5_Marconi
End of forum contributions about this tube
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