Antique radios, Old Time Radios
RT4
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Country:
Italy
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| Identical to |
RT4
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| Filament |
Vf 7 Volts / If 0.45 Ampere / Direct / Specified voltage AC/DC |
| Description |
Va <700V, Ia=50mA, Vg=-10V, Ra=4k9, gm=5.1 mA/V.
Four-large-pin base.
Used as power stage in the RF OC transmitter, with about 25W output power.
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| Information source |
Babani, International Radio Tube Encyclopaedia
-- Original-techn. papers.
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RT4: My book.
Pier Antonio Aluffi
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RT4: My book
Pier Antonio Aluffi
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