Tube-number record
PV 4018
0 archive entries
PV 4018 is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand Tungsram, year 1934, construction Diode, socket 6-pin, and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
BrandTungsram
ClassRectifier
Base6-pin
Filament40 V @ 180 mA
Construction
Primary TypeDiode
Rectifier TypeVoltage Doubler / Full-Wave
EnvelopeDOM
Sections2
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Cathode Current100 mA
Audio Performance
Key Features
- Voltage doubler
- Transformerless operation
- Common heater with separate cathodes
- High efficiency
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Voltage Doubler | 125 V | — | — | — | 100 mA |
Application Notes
Specifically designed for transformerless (Universal/Allstrom) receivers, allowing high performance even on 110V networks via voltage doubling.
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