Tube-number record
6F18
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BrandEdiswan Mazda
ClassVariable Mu H.F. Pentode
BaseNoval (B9A)
Filament6.3 V @ 200 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated—for parallel operation
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.25 W
Grid 2 Voltage250 V
H-C Voltage150 V
Audio Performance
Key Features
- Variable mu
- H.F. Pentode
- Parallel heater operation
- AM/FM Receiver application
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 175 V | 4400 | 220000 | — | 12 mA |
| Cut-off / Reduced Transconductance | 175 V | 100 | — | — | — |
Datasheets
Datasheet: 6F18.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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