Tube-number record
PP 4018
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BrandTungsram
ClassOutput Pentode
Base6-pin
Filament40 V @ 180 mA
Construction
Primary TypeMulti-section
EnvelopeDOM
SectionsSingle
Filament / Heater
Heater NotesIndirekt geheizt
Absolute Maximum Ratings
Plate Voltage180 V
Plate Dissipation10 W
Audio Performance
Power Output3.4 W
Key Features
- Optimized for 110V DC networks
- High power at low voltage
- Requires smaller output transformers
- Efficient heater utilization for all-current operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 80 V | 3000 | 3000 | 60 | 20 mA |
| Standard | 95 V | 3000 | 3000 | 60 | 28 mA |
| Standard | 180 V | 3000 | 3000 | 60 | 32 mA |
| Standard | 180 V | 3000 | 3000 | 60 | 40 mA |
Application Notes
The tube can be connected in series with Tungsram 20V types or Tungsram 'Allstrom' (Universal) tubes.
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