Tube-number record
6D4
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6D4 is a tube type in the TubeDatabase archive (class: Triode Thyratron). Recorded specifications: brand SYLVANIA, construction Triode, socket Miniature 7-pin (B7G), and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
BrandSYLVANIA
ClassTriode Thyratron
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 250 mA
Construction
Primary TypeTriode
EnvelopeT-5 1/2
Sectionssingle
Filament / Heater
MaterialCoated Unipotential
Warm-up Time30s
Heater NotesHeater voltage must be applied before anode voltage.
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Thyratron Operation (Example 1) | 50 V | — | 650 | — | — |
| Thyratron Operation (Example 2) | 125 V | — | 650 | — | — |
| Thyratron Operation (Example 3) | 300 V | — | 650 | — |
Application Notes
The tube must be placed in a constant magnetic field of 375 gausses perpendicular to the electron path for noise generator use. A buffer amplifier is recommended to prevent reactive loading.
Datasheets
Datasheet: 6D4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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