Tube-number record
25Z6
0 archive entries
25Z6 is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand RCA, construction Rectifier, base Small Wafer Octal 7-Pin, socket Octal, and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassRectifier
BaseOctal
Filament25 V @ 300 mA
Construction
Primary TypeRectifier
Rectifier TypeHigh-vacuum
EnvelopeGlass
Base MaterialSmall Wafer Octal 7-Pin
SectionsDouble diode
Filament / Heater
Heater NotesA.C. or D.C.
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Voltage Doubler | 125 V | — | — | — | 85 mA |
| Half-Wave Rectifier | 125 V | — | — | — | 85 mA |
| Half-Wave Rectifier (with series resistor) | 250 V | — | — | — | 85 mA |
Application Notes
The 25Z6 is designed for use in transformerless receivers. It can be used as a half-wave rectifier with plates and cathodes connected in parallel, or as a voltage doubler. A filter of the condenser-input type is recommended.
Datasheets
Datasheet: 25Z6.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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