Tube-number record
EL822
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BrandMullard
ClassVideo Output Pentode
BaseNoval (B9A)
Filament6.3 V @ 750 mA
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage275 V
Plate Dissipation12 W
Grid 2 Voltage275 V
Cathode Current60 mA
H-C Voltage90 V
Audio Performance
Key Features
- High mutual conductance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode connection | 250 V | 13000 | 100000 | 23 | 40 mA |
| Pentode connection | 250 V | 12200 | 90000 | 23 | 37.5 mA |
| Pentode connection | 250 V | 12500 | 90000 | 23 | 42.5 mA |
| Triode connection (g2 connected to a) | 150 V | 14460 | 1560 | 23 | 45 mA |
Application Notes
Video output pentode having a high mutual conductance.
Datasheets
Datasheet: EL822.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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