Antique radios, Old Time Radios
PTT217
| Base |
Noval, 9 pin miniature (USA pico-9) B9A
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| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Pentode for broadband amplifier
Anode and grid 2 voltage : 150V, anode current : 12,5mA, grid current 2 : 3,5mA, grid 1 voltage : -1,75V, transconductance : 16mA/V
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| Information source |
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PTT217: Manufacturers data
Patrice Zeissloff
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Just Qvigstad
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PTT217: Manufacturers data
Patrice Zeissloff
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