Tube-number record
DCG 1/250
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BrandPhilips
ClassRectifier
Base4-pin
Construction
Primary TypeRectifier
Rectifier TypeSingle Anode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialOxide-coated
Warm-up Time15s
Absolute Maximum Ratings
Plate Voltage3000 V
Cathode Current250 mA
Audio Performance
Key Features
- Directly heated
- Single anode
- Mercury vapour filling
- Oxide-coated filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | 1060 V | — | — | — | 250 mA |
Application Notes
In order to ameliorate the life of the tube a preheating time of the filament of at least 15 sec. is recommended. Phase shift of 90 degrees +/- 30 degrees between Va and Vf and use of a centre-tapped filament transformer is recommended.
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