AX228
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BrandEnglish Electric Valve Company
ClassXenon Filled Rectifier
BaseGoliath Edison screw
Construction
Primary TypeXenon filled
Rectifier TypeHot cathode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialOxide coated
Warm-up Time30s
Absolute Maximum Ratings
Plate Voltage13000 V
Cathode Current1500 mA
Audio Performance
Key Features
- Hot cathode
- Xenon filled
- High peak inverse voltage
- Operates over wide ambient temperature range
- Direct replacement for AH221
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single Phase Full Wave | 4600V | - | - | - | 1500mA |
| Three Phase Half Wave | 5300V | - | - | - | 1500mA |
Application Notes
The AX228 may be used as a replacement for the AH221 where its peak inverse voltage rating is adequate, offering the advantage that close control of ambient temperature is not required.
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