WE17
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BrandPhilips / Telefunken
ClassPentode
BaseSide-contact
Filament6.3V @ 400mA
Construction
Primary TypePentode
EnvelopeGlass metallized
SectionsSingle
Filament / Heater
Heater NotesIndirect heating
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1 W
Grid 2 Voltage300 V
Grid 1 Voltage-1.3 V
Cathode Current10 mA
H-C Voltage100 V
Audio Performance
Key Features
- Alta amplificazione
- Buona selettività
- Rivelatrice di griglia in reazione
- Bulbo metallizzato
- Accensione indiretta
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| HF/MF Amplifier | 250V | 2100 | 1500000 | - | 3mA |
| AF Amplifier (RC coupling 1) | 250V | - | - | 165 | 0.25mA |
| AF Amplifier (RC coupling 2) | 250V | - | - | 145 | 0.9mA |
| AF Amplifier (RC coupling 3) | 250V | - | - | 100 | 1.4mA |
| Triode (g2 to Plate) | 200V | 3000 | 8500 |
Application Notes
Used for HF, MF, and LF amplification. In triode mode (screen connected to plate), it functions as a low internal resistance triode suitable for transformer coupling in AF stages.
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