35D5
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BrandMarconi Italiana
ClassBeam Power Tube
BaseSmall Button Noval 9 Pin
Filament35V @ 150mA
Construction
Primary Typebeam pentode
EnvelopeT-6 1/2
Sections1
Filament / Heater
Heater NotesSeries string heating arrangement
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation9.5 W
Grid 2 Voltage250 V
H-C Voltage150 V
Audio Performance
Typical THD10%
Power Output4.8 W
Key Features
- 9 pin miniature type
- unipotential cathode
- intended for audio power amplifier service
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| A.F. Power Amplifier Class A1 | 110V | 8000 | 18000 | - | 30mA |
| A.F. Power Amplifier Class A1 | 170V | 9500 | 20000 | - | 52mA |
Application Notes
Intended especially for use in audio power amplifier service in broadcasting receivers using power-line autotransformer supply.
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