Tube-number record
HEPTODE
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BrandAEG
ClassSwitching Tube
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 300 mA
Construction
Primary TypeMulti-section
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated, parallel supply, AC or DC
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation1 W
Grid 2 Voltage250 V
Grid 1 Voltage-100 V
Cathode Current20 mA
H-C Voltage90 V
Audio Performance
Key Features
- Reliability
- Long Life
- Exacting Tolerances
- Special Cathode Free from Interface
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| conducting (offen) | 150 V | — | — | — | 5.75 mA |
Application Notes
Heptode for switching duties / electronic switch
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