Tube-number record
25Y5
0 archive entries
25Y5 is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand Sylvania, construction Diode, socket 6-pin, and maximum plate voltage 235 V. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassRectifier
Base6-pin
Filament25 V @ 0.3 mA
Construction
Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeST-12
Sections2
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Half-wave Rectifier | 150 V | — | — | — | 75 mA |
| Half-wave Rectifier | 235 V | — | — | — | 75 mA |
Application Notes
Specifically designed as a half-wave rectifier for 220V networks without the need for a series resistor. Both plates and cathodes are usually connected together for half-wave service.
Datasheets
Datasheet: 25Y5.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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