Tube-number record
27
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ClassTriode
Filament2.5 V @ 1.75 mA
Construction
Primary TypeTriode
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage250 V
Audio Performance
Key Features
- Detector
- Amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 180 V | 870 | 9000 | 9 | 5.2 mA |
Application Notes
Commonly used as a detector or amplifier in older radio receivers.
Datasheets
Datasheet: 27.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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