6BW8
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BrandGeneral Electric
ClassDuplex-Diode Sharp-Cutoff Pentode
Base9-Pin Miniature
Filament6.3V @ 450mA
Construction
Primary TypePentode/Duplex-Diode
EnvelopeT-6 1/2
Base MaterialGlass
SectionsSeparate cathodes for diode and pentode sections
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation3 W
Grid 2 Voltage330 V
Grid 1 Voltage-55 V
H-C Voltage200 V
Audio Performance
Key Features
- Sharp-cutoff pentode
- Separate cathodes
- Horizontal phase detector
- Sound IF amplifier
- Sound limiter
- AGC keyer
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section | 250V | 5200 | 250000 | - | 10mA |
Application Notes
The diode sections are primarily intended for use as a horizontal phase detector in television receivers. The pentode section is suitable for use as a sound intermediate-frequency amplifier, sound limiter, and automatic-gain-control keyer.
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