Tube-number record
35W4
0 archive entries
35W4 is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand Brimar, construction Rectifier, base Glass, socket Miniature 7-pin (B7G), and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
BrandBrimar
ClassRectifier
BaseMiniature 7-pin (B7G)
Filament35 V @ 150 mA
Construction
Primary TypeRectifier
Rectifier TypeIndirectly heated
EnvelopeT53
Base MaterialGlass
Sections1
Filament / Heater
Heater NotesHeater tap provided for dial lamp between pins 4 and 6. Lamp section voltage nominal 5.5V-7.5V.
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Half-Wave Rectifier (no lamp) | 250 V | — | 100 | — | 75 mA |
| Half-Wave Rectifier (no lamp) | 250 V | — | 100 | — | 100 mA |
| Half-Wave Rectifier (no lamp) | 117 V | — | 15 | — |
Application Notes
When DC output exceeds 60mA, a shunting resistor across the lamp is required. Suggested values: 800 ohms for 70mA, 400 ohms for 80mA, 250 ohms for 90mA.
Datasheets
Datasheet: 35W4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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