Tube-number record
HALF-WAVE MERCURY VAPOUR RECTIFIER
0 archive entries
HALF-WAVE MERCURY VAPOUR RECTIFIER is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand Ediswan, construction Mercury Vapour, base Goliath Edison screw cap, socket Screw / Edison base, and maximum plate voltage 7000 V. The archive does not yet hold a photographed example of this type.
BrandEdiswan
ClassRectifier
BaseScrew / Edison base
Construction
Primary TypeMercury Vapour
Rectifier TypeHalf-wave
EnvelopeBulb
Base MaterialGoliath Edison screw cap
SectionsSingle
Filament / Heater
Warm-up Time10s
Absolute Maximum Ratings
Plate Voltage7000 V
Cathode Current900 mA
Audio Performance
Key Features
- Half-wave rectification
- Mercury vapour filled
- Blue glow characteristic
- Low voltage drop (10-15V)
- Excellent regulation characteristics
- Top anode terminal
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | — | — | — | — | — |
Application Notes
Filament should be operated for 15 minutes without anode voltage when first placed in service. Use a thermal delay switch (e.g. DLS 10) to ensure 10 second delay before applying H.T. Mount vertically in well-ventilated position. Maximum bulb temperature 50C.
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