Tube-number record
3GS8
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BrandSylvania
ClassPentode
BaseNoval (B9A)
Filament3.15 V @ 600 mA
Construction
Primary TypePentode
EnvelopeT6-1/2
Sections2
Filament / Heater
Heater NotesControlled heater warm-up time
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.1 W
Grid 2 Voltage150 V
Grid 1 Voltage-50 V
Cathode Current12 mA
H-C Voltage200 V
Audio Performance
Key Features
- Dual pentode
- Separate plates
- Separate No. 3 grids
- Controlled heater warm-up
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Both Sections Operating | 100 V | 1200 | — | — | 2 mA |
| Each Section Operating Separately | 100 V | 1200 | — | — | 2 mA |
Application Notes
Primarily intended for service as a combined sync separator-clipper and AGC tube in television receivers.
Datasheets
Datasheet: 3GS8.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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