Tube-number record
7GS7
0 archive entries
7GS7 is a tube type in the TubeDatabase archive (class: Triode-Pentode Tube). Recorded specifications: brand Matsushita, construction Multi-section, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.
BrandMatsushita
ClassTriode-Pentode Tube
BaseNoval (B9A)
Filament7.6 V @ 300 mA
Construction
Primary TypeMulti-section
EnvelopeT6 1/2
Sections2
Filament / Heater
Heater NotesDesign center values
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 170 V | 12000 | 350000 | — | 10 mA |
Application Notes
To fulfill modulation hum requirements in intercarrier receivers, heater-cathode voltage should not exceed 75 volts rms. In AM sound receivers, it should not exceed 50 volts rms.
Datasheets
Datasheet: 7GS7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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