Antique radios, Old Time Radios
251
|
Country:
United States of America (USA)
|
|
| Identical to |
251
= 35
|
| Similar
Tubes |
Normally replaceable-slightly different:
35/51
; 51
; Y251
|
| Base |
UY-Base, 5 Pins (USA, April 1927) (Codex=Ha)
Top contact with a cap.
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2.5 Volts / If 1.7 Ampere / Indirect |
Dimensions (WHD)
incl. pins / tip |
x 123 x 45 mm / x 4.84 x 1.77 inch |
| Weight |
49 g / 1.73 oz |
| Tube prices |
1 Tube prices (visible for members
only)
|
| Information source |
Babani, International Radio Tube Encyclopaedia p.30 & 31
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 178, p. 309
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
Taschenbuch zum Röhren-Codex 1948/49
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251: Allied Radio Corp.
Günter Kudicke
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251: Telefunken Werkstattbuch
Wolfgang Bauer
|
Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):20
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