3FY5
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BrandTUNG-SOL
ClassShielded Triode
Base7 Pin Miniature
Filament3.1V @ 0.45mA
Construction
Primary TypeTriode
EnvelopeT-5 1/2
Base MaterialGlass
Sections1
Filament / Heater
Heater NotesSeries Supply
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation2.2 W
Grid 1 Voltage-50 V
Cathode Current20 mA
H-C Voltage100 V
Audio Performance
Key Features
- Remote cut-off
- Frame grid
- Shielded triode
- Low noise figure at 220 MC/S
- Low supply voltage operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 135V | 13000 | - | 70 | 11mA |
| Cut-off characteristic 1 | 135V | 625 | - | - | - |
| Cut-off characteristic 2 | 135V | 125 | - | - | - |
| Cut-off characteristic 3 | 135V | - | - | - | 0.1mA |
Application Notes
Especially designed for service in VHF tuners of television receivers.
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