Tube-number record
1AF4
0 archive entries
1AF4 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Sylvania, construction Pentode, socket Miniature 7-pin (B7G), and maximum plate voltage 110 V. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassPentode
BaseMiniature 7-pin (B7G)
Construction
Primary TypePentode
EnvelopeT-5 1/2
SectionsSingle
Filament / Heater
Materialcoated
Absolute Maximum Ratings
Plate Voltage110 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode - Condition 1 | 67.5 V | 825 | 2000000 | — | 1.9 mA |
| Pentode - Condition 2 | 90 V | 950 | 1800000 | — | 1.65 mA |
Datasheets
Datasheet: 1AF4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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