13GC8
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BrandSiemens Edison Swan Limited
ClassDual Triode-Beam Tetrode
BaseNoval (B9A)
Filament13V @ 0.3mA
Construction
Primary TypeTriode-Beam Tetrode
EnvelopeClear Glass
Base MaterialGlass
Sections2
Filament / Heater
Heater NotesSeries connected heater chains
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation5.5 W
Grid 2 Voltage250 V
H-C Voltage150 V
Audio Performance
Typical THD5%
Power Output2.35 W
Key Features
- Separate cathodes for each section
- Suitable for Audio Amplifier or Frame Time-Base
- Designed for series heater chains
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Tetrode Section Class A | 170V | 6500 | - | - | 28mA |
| Triode Section Characteristics | 200V | 3400 | 5300 | 18 | 10mA |
Application Notes
The total tetrode peak anode current for a new average valve is 96mA at Va=50V, Vg2=180V, Vg1=-1V.
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