WE 20
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BrandWE
ClassTriode-Hexode
BaseSide-contact
Construction
Primary TypeTriode-Hexode
EnvelopeGlass metallized
Sections2
Filament / Heater
Heater NotesIndirectly heated, rapid heating, spiral filament
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.5 W
Grid 2 Voltage300 V
Grid 1 Voltage-1.3 V
Cathode Current15 mA
H-C Voltage100 V
Audio Performance
Key Features
- Variable-mu
- Frequency conversion
- Oscillator-Modulator
- Metallized bulb
- Rapid heating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Hexode Section (Fixed Screen) | 250V | 650 | 2000000 | - | 2.3mA |
| Triode Section (Static) | 150V | 2800 | - | 20 | 3.3mA |
Application Notes
Conversion up to 40 MHz with stability. Recommended oscillator with anode-tuned circuit. Grid negative potential during oscillation should be -7V to -14V.
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