Tube-number record
VF PENTODA
0 archive entries
VF PENTODA is a tube type in the TubeDatabase archive (class: Receiving tube). Recorded specifications: brand Tesla, construction Pentode, maximum plate voltage 250 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.
BrandTesla
ClassReceiving tube
Filament18 V @ 165 mA
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation4 W
Grid 2 Voltage250 V
Cathode Current20 mA
H-C Voltage50 V
Audio Performance
Key Features
- Kysličníková katoda
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| VF zesilovač | 250 V | 10500 | 500000 | — | 15 mA |
Application Notes
High frequency amplifier
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