Tube-number record
6F7
0 archive entries
BrandSylvania
ClassTriode-Pentode
Base7-pin (non-miniature)
Filament6.3 V @ 300 mA
Construction
Primary TypeMulti-section
EnvelopeST-12C
Sections2
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage250 V
Grid 2 Voltage100 V
Audio Performance
Key Features
- Indirectly heated
- Independent outputs per section (except common cathode)
- Triple-grid pentode and triode in one envelope
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Section Triode | 100 V | 525 | 16200 | 8.5 | 3.5 mA |
| Section Pentode (Low Voltage) | 100 V | 1050 | 290000 | 300 | 6.3 mA |
| Section Pentode (High Voltage) | 250 V | 1100 | 850000 | 900 | 6.5 mA |
Application Notes
The pentode section can function in HF or MF and the triode section as a polarized detector. Can also function as a frequency converter with the triode as an oscillator and pentode as a detector.
Datasheets
Datasheet: 6F7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results