Antique radios, Old Time Radios

258B
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Country:
United States of America (USA)
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| Identical to |
258B
= CV2594
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| Similar
Tubes |
Other base:
249B
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| Base |
SPECIAL TUBEBASE in general
Top contact with a cap.
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| Was used by |
Industrial |
| Filament |
Vf 2.5 Volts / If 7.5 Ampere / Direct |
| Description |
7.5KV PIV, 640mA. Bi-pin version of 249B.
Amperex, Continental, Hytron, Taylor and WE known manufacturers.
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Dimensions (WHD) incl. pins / tip |
x 174 x 63 mm / x 6.85 x 2.48 inch |
| Information source |
Tube Lore (II) p. 237
- - Manufacturers Literature
Tube Lore (I)
Taschenbuch zum Röhren-Codex 1948/49
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258B: Western electric electron tubes
Miguel Angel Trujillo-Rodriguez
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258B: Manufacturer's Literature
Emilio Ciardiello
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