Tube-number record
AF3
0 archive entries
AF3 is a tube type in the TubeDatabase archive (class: HF Pentode Selectode). Recorded specifications: brand Philips Miniwatt, construction Pentode, socket Side-contact (P-base), and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
BrandPhilips Miniwatt
ClassHF Pentode Selectode
BaseSide-contact (P-base)
Filament4 V @ 650 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard (Operating Data) | 250 V | 1800 | 1200000 | — | 8 mA |
| Screen Grid 85V | 250 V | 2100 | — | — | 7.5 mA |
| Screen Grid 60V | 250 V | 1500 | — | — | 4 mA |
Datasheets
Datasheet: AF3.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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