Tube-number record
EF183
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ClassVariable-mu Frame Grid Pentode
BaseNoval (B9A)
Filament6.3 V @ 0.3 mA
Construction
Primary TypePentode
EnvelopeGlass
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.5 W
Grid 2 Voltage250 V
Grid 1 Voltage-50 V
Cathode Current25 mA
H-C Voltage150 V
Audio Performance
Key Features
- High transconductance
- Frame grid construction
- Variable-mu characteristic
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 170 V | 12500 | 500000 | — | 12 mA |
| Class A Amplifier (200V) | 200 V | 12500 | 500000 | — | 12 mA |
Application Notes
Specifically designed for use as a variable-gain IF amplifier in television sets.
Datasheets
Datasheet: EF183.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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