Tube-number record
35X4
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BrandFIVRE (Fabbrica Italiana Valvole Radio Elettriche)
ClassHalf-wave Rectifier
BaseMiniature 7-pin (B7G)
Filament35 V @ 150 mA
Construction
Primary TypeDiode
Rectifier Typehalf-wave
Envelopeglass
Sectionssingle
Filament / Heater
Heater NotesIndirect heating
Absolute Maximum Ratings
Plate Voltage700 V
Cathode Current100 mA
H-C Voltage450 V
Audio Performance
Key Features
- Any mounting position
- Miniature 7-pin base
- Indirectly heated cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| half-wave rectifier (110V) | 110 V | — | 15 | — | 100 mA |
| half-wave rectifier (125V) | 125 V | — | 15 | — | 100 mA |
| half-wave rectifier (220V) | 220 V | — | 100 | — | 100 mA |
Application Notes
An input voltage higher than 125V can be used provided a resistor of at least 100 Ohms is inserted in series with the anode conductor. With a filter input capacitor higher than 40 microfarads, it may be necessary to increase anode circuit impedance to maintain peak current limits.
Datasheets
Datasheet: 35X4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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