DQ 4
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BrandBrown, Boveri & Cie.
ClassMercury Vapor Rectifier
BaseA4-29 (Jumbo 4-pin with Bayonet)
Construction
Primary TypeHalf-wave Rectifier
Rectifier TypeMercury Vapor
EnvelopeGlass
Base MaterialPlastic/Ceramic
SectionsSingle
Filament / Heater
MaterialOxide
Warm-up Time30s
Absolute Maximum Ratings
Plate Voltage13500 V
Cathode Current1500 mA
Audio Performance
Key Features
- Pill method for mercury (reduces splashing)
- High peak inverse voltage
- Can be operated up to 90 degree inclination
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier Operation (Hg-Temp 25-60°C) | 13500V | - | - | - | 1500mA |
| Rectifier Operation (Hg-Temp 25-70°C) | 5000V | - | - | - | 1750mA |
Application Notes
Recommended for high voltage rectifiers in transmitters and industrial generators.
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