Antique radios, Old Time Radios
T250_MO
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Country:
Great Britain (UK)
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Brand:
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MO Valve Co. Ltd.; GB |
| Tube type: |
Transmitting Triode, air cooled Power/Output |
| |
<1925 very rare. *** |
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| Identical to |
T250_MO
|
| Similar
Tubes |
Heater different:
MT1_MOV
|
| First year |
1922
Saga of the Vacuum Tube, Tyne page 381
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| First Source
(s) |
1919 : British Radio Valves - The Vintage Years: 1904-1925 p.69,128
|
| Base |
Wires
Wires only.
|
| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 12.5 Volts / If 5.5 Ampere / Direct / Specified voltage AC/DC |
| Description |
double ended 250 Watt valve. 2000 to 4000V anode voltage.
|
Dimensions (WHD)
incl. pins / tip |
125 x 280 x mm / 4.92 x 11.02 x inch |
| Weight |
339 g / 11.96 oz |
| Information source |
- - Manufacturers Literature Marconi catalog No. 520, Sept. 1928
The Saga of Marconi Osram Valve Pages 23 & 77
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
Collection of
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