EL822
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BrandMullard
ClassVideo Output Pentode
BaseB9A
Filament6.3V @ 750mA
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 | 250V | 13000 | 100000 | 23 | 40mA |
| Pentode connection | 250V | 12200 | 90000 | 23 | 37.5mA |
| Pentode connection | 250V | 12500 | 90000 | 23 | 42.5mA |
| Triode connection (g2 connected to a) | 150V | 14460 | 1560 | 23 | 45mA |
Application Notes
Video output pentode having a high mutual conductance.
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