Tube-number record
8068
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BrandGeneral Electric
ClassBeam Pentode
BaseOctal
Filament6.3 V @ 0.9 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeT12 Glass
Base MaterialB5-149
SectionsSingle
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Plate Voltage3500 V
Plate Dissipation35 W
Grid 2 Voltage250 V
Cathode Current100 mA
H-C Voltage200 V
Audio Performance
Key Features
- Series regulator in high-voltage power supplies
- Any mounting position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 3500 V | — | — | — | 1 mA |
| Average Characteristics | 600 V | 5200 | 54500 | — | 36 mA |
Application Notes
The 8068 is a beam pentode designed for use as a series regulator in high-voltage power supplies.
Datasheets
Datasheet: 8068.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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