Antique radios, Old Time Radios
SP4/U1
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Country:
Great Britain (UK)
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| Identical to |
SP4/U1
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| Base |
Europe side contact P8A (Au P, 8SC)
2 Top contacts.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.7 Ampere / Indirect / Specified voltage AC/DC |
| Description |
This tube was designed by tungsram, Hungary as a special type of UHF tube for ultra short waves. It was designed with three cathode leads to minimise inductance feedback. Cathodes were connected by way of tthe two top caps.
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| Information source |
Wireless World (The), London (WW, 79) p. 246, March 16th, 1939
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Just Qvigstad
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| Data Compliance |
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