PB 2/500
0 Tubes in archive
BrandPhilips
ClassPentode
Construction
Primary TypePentode
EnvelopeGlass
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage2500 V
Plate Dissipation250 W
Grid 2 Voltage500 V
Cathode Current600 mA
Audio Performance
Key Features
- H.F. amplifier
- Thoriated tungsten cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy | 2500V | 6000 | - | 6.2 | 340mA |
| H.F. class B telephony | 2000V | - | - | - | 170mA |
| H.F. class C anode modulation | 2000V | - | - | - | 215mA |
Sort by
Showing 1 to 0 of 0 results