Tube-number record
312
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BrandWestern Electric
ClassSmall-signal Pentode
Base4-pin
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage180 V
Plate Dissipation1.2 W
Grid 2 Voltage180 V
Audio Performance
Key Features
- Filamentary Cathode
- Suppressor Grid Pentode
- Small signal amplifier tube
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 180 V | 1250 | 500000 | 625 | 3.5 mA |
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