Tube-number record
F 215
0 archive entries
F 215 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Philips Miniwatt, construction Indirectly heated cathode, and maximum plate voltage 150 V. The archive does not yet hold a photographed example of this type.
BrandPhilips Miniwatt
ClassTriode
Filament2.5 V @ 1.5 mA
Construction
Primary TypeIndirectly heated cathode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesAC heater (Wisselstroom)
Absolute Maximum Ratings
Plate Voltage150 V
Audio Performance
Key Features
- Indirectly heated cathode
- AC operation
- Low noise
- Separate electron-emitting surface
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Detection and Low-Frequency Amplification | 150 V | 2000 | 7500 | 15 | 8 mA |
Application Notes
Wisselstroomlamp voor detectie en laagfrequent-versterking. Designed to eliminate AC hum via indirect heating.
Datasheets
Datasheet: F215.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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