Antique radios, Old Time Radios
212D
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Country:
United States of America (USA)
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| Identical to |
212D
= CW-1819B
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| Similar
Tubes |
Normally replaceable-slightly different:
4212D
; CV200
; MZ2-200
Other base and data slightly different:
241A
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| First year |
1919
?
Vintage Radio 1887-1929, Greenwood's Classic Picto
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| Predecessor Tubes |
212A
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Successor Tubes
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312E
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| Base |
Large 4 pin Bayonet (Codex=Eo)
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 14 Volts / If 4 Ampere / Direct / Specified voltage AC/DC |
| Description |
250 Watt TX tube.
According to Tyne, 212D replaced 212A in 1924.
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Dimensions (WHD)
incl. pins / tip |
x 345 x 92 mm / x 13.58 x 3.62 inch |
| Weight |
744 g / 26.24 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1951
Saga of the Vacuum Tube, Tyne p. 290, 291
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212D
Emilio Ciardiello
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