Tube-number record
PF86
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PF86 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Philips, construction Pentode, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassPentode
BaseNoval (B9A)
Filament4.5 V @ 300 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect heating, series supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1 W
Grid 2 Voltage200 V
Cathode Current4 mA
H-C Voltage100 V
Audio Performance
Key Features
- Pentode for use in transitron circuits
- Television receivers
- Indirectly heated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode characteristic | 250 V | 2000 | 2500000 | 38 | 3 mA |
| Transitron characteristic (Cut-off) | 100 V | — | — | — | 0.01 mA |
Datasheets
Datasheet: PF86.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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