3GS8
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BrandSylvania
ClassPentode
BaseE9-1, Small Button 9-Pin
Filament3.15V @ 600mA
Construction
Primary TypeDual Control Pentode
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 | 100V | 1200 | - | - | 2mA |
| Each Section Operating Separately | 100V | 1200 | - | - | 2mA |
Application Notes
Primarily intended for service as a combined sync separator-clipper and AGC tube in television receivers.
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