Tube-number record
E90F
4 archive entries
E90F is a tube type in the TubeDatabase archive (class: Sharp cut-off R.F. Pentode). Recorded specifications: brand PHILIPS, construction Pentode, socket Miniature 7-pin (B7G), maximum plate voltage 330 V, and maximum plate dissipation 2.6 W. The archive holds 4 photographed examples of this type.
BrandPHILIPS
ClassSharp cut-off R.F. Pentode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 150 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect by A.C. or D.C.; series or parallel supply
Absolute Maximum Ratings
Plate Voltage330 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 250 V | 4600 | 250000 | 48 | 7.4 mA |
Application Notes
Heater voltage variations of +20% are allowed during short periods. Circuit operation with cathode bias is recommended. Noise output max 100 mVolt.
Datasheets
Datasheet: E90F.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
