4017-B
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BrandStandard valves
ClassHalf Wave Mercury Vapour Rectifier
BaseEdison medium screw
Construction
Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialMetal/Screw
SectionsSingle
Filament / Heater
MaterialOxide coated filament (shielded)
Warm-up Time30s
Absolute Maximum Ratings
Plate Voltage7000 V
Cathode Current1500 mA
Audio Performance
Key Features
- Half wave
- Hot cathode
- Mercury vapour
- Shielded filament
- Constant current filament type
- Directly heated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Circuit 2 (2 valves) | 2500V | - | - | - | 900mA |
| Circuit 3 (4 valves) | 5000V | - | - | - | 900mA |
| Circuit 4 (3 valves) | 3000V | - | - | - | 1200mA |
| Circuit 5 (6 valves) | 3000V | - | - | - | 2400mA |
| Circuit 6 (6 valves) | 6000V | - | - | - | 1500mA |
Application Notes
Important: This rectifier being directly heated, the output circuit must be connected to the mid-point of the filament transformer. For ambient temperatures 10°C - 15°C, heating time is 5 minutes.
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