Tube-number record
6BS7
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6BS7 is a tube type in the TubeDatabase archive (class: Indirectly heated screened pentode). Recorded specifications: brand Brimar, construction Pentode, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 1.75 W. The archive does not yet hold a photographed example of this type.
BrandBrimar
ClassIndirectly heated screened pentode
BaseNoval (B9A)
Filament6.3 V @ 150 mA
Construction
Primary TypePentode
EnvelopeT6-1/2 (T64)
SectionsSingle
Filament / Heater
Heater NotesDouble spiral winding to reduce magnetic field
Absolute Maximum Ratings
Plate Voltage300 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 100 V | 1100 | 1500000 | 20 | 2 mA |
| Pentode | 250 V | 1250 | 2400000 | 20 | 2.1 mA |
| Triode | 250 V | 1720 | 11600 | 20 | 6.5 mA |
Application Notes
Intended for early stages of high gain AF amplifiers. Control grid brought to top cap to reduce stray pick-up. Low noise design minimizes shot noise and leakage noise.
Datasheets
Datasheet: 6BS7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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