Tube-number record
4017-B
0 archive entries
4017-B is a tube type in the TubeDatabase archive (class: Half Wave Mercury Vapour Rectifier). Recorded specifications: brand Standard valves, construction Rectifier, base Metal/Screw, socket Screw / Edison base, and maximum plate voltage 7000 V. The archive does not yet hold a photographed example of this type.
BrandStandard valves
ClassHalf Wave Mercury Vapour Rectifier
BaseScrew / Edison base
Construction
Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialMetal/Screw
SectionsSingle
Filament / Heater
MaterialOxide coated filament (shielded)
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Circuit 2 (2 valves) | 2500 V | — | — | — | 900 mA |
| Circuit 3 (4 valves) | 5000 V | — | — | — | 900 mA |
| Circuit 4 (3 valves) | 3000 V | — | — | — | 1200 mA |
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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