Tube-number record
6DR8
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6DR8 is a tube type in the TubeDatabase archive (class: Double-diode-pentode). Recorded specifications: brand Rogers Electronic Tubes & Components, construction Multi-section, base Glass, socket Noval (B9A), and maximum plate voltage 50 V. The archive does not yet hold a photographed example of this type.
BrandRogers Electronic Tubes & Components
ClassDouble-diode-pentode
BaseNoval (B9A)
Filament6.3 V @ 300 mA
Construction
Primary TypeMulti-section
EnvelopeTt 6 1/2
Base MaterialGlass
SectionsDouble diode, single pentode
Filament / Heater
Heater NotesOperated directly from a storage battery
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| I.F. amplifier | 25 V | 2100 | 200000 | — | 1.7 mA |
| I.F. amplifier | 12.6 V | 1000 | 1000000 | — | 0.45 mA |
| I.F. amplifier | 6.3 V | 450 | 650000 | — | 0.12 mA |
Application Notes
Double-diode-pentode for use as I.F. amplifier, detector and for automatic gain control in car-radio sets to be operated directly from a storage battery. Grid No. 1 bias obtained by grid current biasing with a grid No. 1 resistor of 2.2 megohms.
Datasheets
Datasheet: 6DR8.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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