6FX7
0 Tubes in archive
BrandToshiba
ClassMedium-mu twin triode
Base8-pin subminiature
Filament6.3V @ 300mA
Construction
Primary TypeTwin Triode
EnvelopeT3
Base MaterialGlass
Sections2
Filament / Heater
Heater NotesUnipotential cathode
Absolute Maximum Ratings
Plate Voltage100 V
Plate Dissipation1.7 W
Cathode Current20 mA
H-C Voltage200 V
Audio Performance
Key Features
- Subminiature
- Shield can with indexing lugs
- High transconductance
- Low noise
- Low interelectrode capacitance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier (each section) | 90V | 9500 | 3800 | 36 | 9mA |
| Cascode Amplifier | 165V | 13000 | - | - | 16.5mA |
Application Notes
Designed for use as a cascode amplifier in high gain tuners for television receivers.
Sort by
Showing 1 to 0 of 0 results