Tube-number record
6867
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BrandFederal Telephone and Radio Company
ClassTraveling Wave Tube
BaseDuodecal
Filament6.3 V @ 850 mA
Construction
Primary TypeOther / special
EnvelopeMetal
SectionsSingle
Filament / Heater
Heater NotesUnipotential oxide coated cathode
Absolute Maximum Ratings
Plate Voltage1500 V
Plate Dissipation25 W
Grid 2 Voltage1600 V
Grid 1 Voltage-250 V
Audio Performance
Power Output0.1 W
Key Features
- Helical type wave propagating structure
- Forced air cooled
- Integral matching circuit
- CW service
- Metal envelope
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Intermediate Power Amplifier | 1400 V | — | — | — | 8 mA |
Application Notes
The focussing electrode voltage is adjusted for maximum beam transmission. The tube must not be operated without the magnetic field applied to avoid damage.
Datasheets
Datasheet: 6867.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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