Tube-number record
5908
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BrandSylvania
ClassSharp cutoff, dual control pentode
BaseSubminiature
Filament26.5 V @ 150 mA
Construction
Primary TypePentode
EnvelopeT3
Sectionssingle
Filament / Heater
Heater NotesOperates from a 26.5 volt heater and B supply
Absolute Maximum Ratings
Plate Voltage55 V
Grid 2 Voltage55 V
Grid 1 Voltage-55 V
Cathode Current10 mA
H-C Voltage100 V
Audio Performance
Key Features
- Premium Subminiature
- Sharp cutoff dual control pentode
- Reliable operation under severe shock and vibration
- Operates from 26.5V supply
- Mixer service up to 400 mc
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Amplifier | 26.5 V | 2200 | 31000 | — | 3.3 mA |
| Mixer | 26.5 V | — | 65000 | — | 2.1 mA |
Application Notes
Particularly useful as a mixer at frequencies up to 400 mc, but may also be used in gating and other applications at low frequencies. Developed for operation under severe shock, vibration, and high temperature conditions.
Datasheets
Datasheet: 5908.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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