Tube-number record
5987
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BrandSylvania
ClassPremium Subminiature Power Triode
BaseSubminiature
Filament6.3 V @ 450 mA
Construction
Primary TypeTriode
EnvelopeT3
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesOperation at 6.3V is center-rated for reliability.
Absolute Maximum Ratings
Plate Voltage165 V
Plate Dissipation4 W
Cathode Current50 mA
H-C Voltage200 V
Audio Performance
Key Features
- Low-mu
- High perveance
- Severe shock resistance
- Vibration resistant
- High altitude operation
- High temperature operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Control Tube / Class A | 100 V | 1850 | — | 4.1 | 9 mA |
Application Notes
Specifically designed for use as a control tube in servo circuits. Precautions should be taken against back emission when used with alternating voltage supplies. Effects can be minimized by low value grid resistors or series diodes like Sylvania 5641.
Datasheets
Datasheet: 5987.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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