Tube-number record
5638
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BrandSylvania
ClassPentode Voltage Amplifier
BaseSubminiature
Filament6.3 V @ 150 mA
Construction
Primary TypePentode
EnvelopeT-3
Base MaterialFlexible Leads
SectionsSingle
Filament / Heater
Heater NotesAC or DC, Design Center Values
Absolute Maximum Ratings
Plate Voltage150 V
Plate Dissipation0.6 W
Grid 2 Voltage140 V
H-C Voltage90 V
Audio Performance
Key Features
- Subminiature construction
- Unipotential cathode
- High shock resistance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Voltage Amplifier | 100 V | 3300 | 150000 | — | 4.8 mA |
Application Notes
Grid bias for 10 µA Plate Current is -9.0 Volts. Capacitances measured without shield.
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