6BL4
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BrandLansdale Tube Company
ClassHigh Voltage Diode Damper Tube
BaseOctal
Filament6.3V @ 1.2mA
Construction
Primary TypeDiode
Rectifier TypeHigh-vacuum
EnvelopeT9
SectionsSingle
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Plate Voltage5000 V
Plate Dissipation8 W
Cathode Current175 mA
H-C Voltage750 V
Audio Performance
Key Features
- High vacuum diode
- Damper diode in television sweep circuits
- Skirted miniature top cap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Tube Voltage Drop | 22V | - | - | - | 300mA |
Application Notes
Power rectifier operation is not recommended. For operation in a 525-line, 30-frame system as described in Standards of Good Engineering Practice for Television Broadcasting Stations.
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