Tube-number record
327
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BrandArcturus
ClassTriode
BaseSpecial / none
Filament2.5 V @ 1750 mA
Construction
Primary TypeTriode
EnvelopeST-12
Sections1
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage180 V
Plate Dissipation1.1 W
Audio Performance
Key Features
- Blue glass envelope
- A-C Heater type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Amplifier | 180 V | 1000 | 8500 | 8.5 | 6 mA |
| Detector | 45 V | — | — | — | 1.5 mA |
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