Antique radios, Old Time Radios
D2
 |
| Identical to |
D2 = D-II = PR12_Condor = D-II_Ideezet = DHV_Ideezet
|
| Similar
Tubes |
Other base:
D-V; D5_Philips
|
| First Source
(s) |
05.Mar.1926 : Radio Luistergids, The Netherlands The D2 is still available.
|
| Production stop |
1927 |
|
| Base |
Europe 4-Pin (A, 4A, B4, since 1914)
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| Filament |
Vf 3.5 Volts / If: 0.5 Ampere / -: Direct / -: Battery = / |
| Description |
Uf=3,5VDC, If=0,5A, Ua=30-75V. In 1925 und 1926 Ua = 40-100V. Röhren mit dem Aufdruck "Serie" sind zur Heizung mit einem Eisen-Serienwiderstand für 6V-Batterie vorgesehen. Die gleiche Röhre heisst in 1921 biss 1925 D II bzw., zeigt also eine römische Nummer (ohne Bindestrich).
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
30 x 93 x 28 mm / 1.18 x 3.66 x 1.10 inch |
| Weight |
32 g / 1.13 oz |
| Literature |
Saga of the Vacuumtube, Tyne p.416
- - Manufacturers Literature 1920
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D2: Vonarburg Albert
Albert Vonarburg
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| Variants |
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D2
Peter den Boer
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D2: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector
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| Usage in Models |
1= 1923 ; 2= 1924 ; 2= 1925 |
| Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 5 |
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Variants
own collection
Peter den Boer |
D2*tipless
In 1925 the D2 was tipless
05.Jul.2011 Peter den Boer
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D2*bakelite base
In 1926 the D2 had a bakelite base.
05.Jul.2011 Peter den Boer
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own collection
Peter den Boer |
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