Tube-number record
6703
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6703 is a tube type in the TubeDatabase archive (class: Magnetron Beam Switching Tube). Recorded specifications: brand Burroughs Corporation, construction Beam tetrode / beam power, base Mica filled panel, socket 6-pin, maximum plate voltage 300 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandBurroughs Corporation
ClassMagnetron Beam Switching Tube
Base6-pin
Filament6.3 V @ 300 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeGlass with Magnet Shield
Base MaterialMica filled panel
Sections10
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1 W
Grid 2 Voltage200 V
Grid 1 Voltage200 V
H-C Voltage180 V
Audio Performance
Key Features
- High vacuum
- Ten output
- Magnetically shielded
- Constant current device
- Pentode type output characteristics
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Test Conditions | 100 V | — | — | — | 6.5 mA |
Application Notes
The tube is a constant current device. Switching grids are connected into even and odd sets. To avoid stress, clamp the magnetic shield rather than the base.
Datasheets
Datasheet: 6703.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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