Antique radios, Old Time Radios
7270
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| Tube type: |
Transmitting Tetrode, air cooled |
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| Identical to |
7270
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| Similar
Tubes |
Heater different:
7271
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| Filament |
Vf 6.3 Volts / If 3.1 Ampere / Indirect |
| Description |
bis 175MHz
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7270: ARRL Handbook 1972
Anonymous 10 Collector
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7270: RCA Transistor Manual 1964
Heinz Höger
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