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BrandSonotone
ClassPentode
BaseSubminiature Button
Filament6.3V @ 175mA
Construction
Primary TypeSemi-remote cut-off pentode
EnvelopeT-3
SectionsSingle
Filament / Heater
Heater NotesMaximum Heater-Cathode Voltage: 200V
Absolute Maximum Ratings
Plate Voltage165 V
Plate Dissipation1.1 W
Grid 2 Voltage155 V
Grid 1 Voltage-55 V
Cathode Current16.5 mA
H-C Voltage200 V
Audio Performance
Key Features
- Reliable performance under extreme vibration and shock
- Semi-remote cut-off
- Close tolerance on filament current
- Resistance to vibration frequencies up to 2000 cycles
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Operation | 100V | 4500 | 175000 | - | 7.2mA |
Application Notes
Designed for applications where reliable performance under conditions of extreme vibration and shock is essential.
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