TB 3/350
0 Tubes in archive
BrandPhilips
ClassTriode
BaseMedium 4-pin with bayonet
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage3000 V
Plate Dissipation100 W
Grid 1 Voltage-250 V
Cathode Current225 mA
Audio Performance
Key Features
- Thoriated tungsten filament
- Directly heated
- H.F. or L.F. amplifier or oscillator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy | 3000V | - | - | 38 | 167mA |
| H.F. class C telegraphy | 2000V | - | - | 38 | 167mA |
| H.F. class C anode modulation | 2500V | - | - | - | 140mA |
| L.F. class B amplifier (two tubes) | 2500V | - | 22000 | - | 140mA |
Application Notes
Mounting position: vertical with base up or down.
Sort by
Showing 1 to 0 of 0 results