Antique radios, Old Time Radios
405D
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Country:
United States of America (USA)
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| Identical to |
405D
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| Similar
Tubes |
Normally replaceable-slightly different:
205D
; R205-D
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| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
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| Was used by |
Industrial |
| Filament |
Vf 4.5 Volts / If 1.6 Ampere / Direct / Battery = |
| Description |
De Forest replacement for WE 205D. From 1933, when RCA bought De Forest, also in the RCA Photophone line for maintaining WE sound systems. Not listed for distributor sales.
Source Lud Sibley.
Locking pin rotated 45 deg to prevent damage to other tubes put into the socket.
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Dimensions (WHD)
incl. pins / tip |
x 108 x 64 mm / x 4.25 x 2.52 inch |
| Weight |
65 g / 2.29 oz |
| Information source |
Tube Lore (II) p. 199
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Just Qvigstad
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Collection of
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