Tube-number record
CL33
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BrandMullard
ClassOutput Pentode
BaseOctal
Filament33 V @ 200 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation9 W
Grid 2 Voltage250 V
Grid 1 Voltage-1.3 V
Cathode Current70 mA
H-C Voltage175 V
Audio Performance
Typical THD10%
Power Output4 W
Key Features
- High-sensitivity
- DC/AC mains-operated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A | 200 V | 9000 | 35000 | 13.5 | 45 mA |
Datasheets
Datasheet: CL33.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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