Antique radios, Old Time Radios
DFA6
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Country:
Great Britain (UK)
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| Identical to |
DFA6
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 5 Volts / If 0.85 Ampere / Direct / Battery = |
| Description |
"A Power amplifier with a very large emission, suitable for operating with anode voltages up to 400 volts. It can also be used as a low power transmitter dissipating 10 watts continuously with perfect safety." Mullard.
Va < 400; Ra 4500 ohms, 1.45mA/V at Va=100 and Vg=0
Filament current of 0.85A is a maximum figure. DFA series = Dull Filament Amplifying
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| Information source |
- - Manufacturers Literature Advertisement May 1930
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DFA6: Fin Stewart
Fin Stewart
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Just Qvigstad
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