Tube-number record
EY 91
0 archive entries
EY 91 is a tube type in the TubeDatabase archive (class: High-vacuum HALF-WAVE RECTIFIER). Recorded specifications: brand Philips, construction Diode, socket Miniature 7-pin (B7G), and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassHigh-vacuum HALF-WAVE RECTIFIER
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 0.42 mA
Construction
Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeMiniature Glass
SectionsSingle
Filament / Heater
Heater NotesIndirect by A.C. parallel supply
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier (Vtr=250V, C=32uF) | 250 V | — | 100 | — | 75 mA |
| Rectifier (Vtr=250V, C=16uF) | 250 V | — | 50 | — | 75 mA |
| Rectifier (Vtr=200V, C=32uF) | 200 V | — | 70 | — |
Application Notes
Designed for A.C. parallel supply heating.
Datasheets
Datasheet: EY91.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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