Antique radios, Old Time Radios
PTT240P
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Country:
France
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Brand:
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| Tube type: |
Screen-grid Tetrode Universal |
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| Identical to |
PTT240P
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| Similar
Tubes |
Heater different:
PTT241P
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| Base |
France PTT49 (B8P=F8A)
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| Filament |
Vf 18 Volts / If 0.28 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Long life pentode (12000h) tetrode for broadband amplifier
Anode and grid 2 voltage : 220V, anode current : 34mA, grid current 2 : 4,5mA, grid 1 voltage : -2,9V, transconductance : 12,5mA/V
Text in other
languages (may
differ)
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| Information source |
-- Collector info (Sammler) UNIVERSAL VADE-MECUM 1960
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PTT240P: CSF répertoire des tubes 1962
Patrice Zeissloff
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