Tube-number record
PAL 12/15
0 archive entries
PAL 12/15 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Philips, construction Pentode, maximum plate voltage 12000 V, and maximum plate dissipation 8000 W. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassPentode
Construction
Primary TypePentode
EnvelopeMetal-Glass
Sections1
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation8000 W
Grid 2 Voltage2000 V
Audio Performance
Key Features
- Forced air cooling
- High power pentode
- Tungsten cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy | 12000 V | 8000 | — | — | 1900 mA |
| H.F. class B telephony | 12000 V | 8000 | — | — | 1000 mA |
| H.F. class C anode modulation | 8000 V | 8000 | — | — | 1200 mA |
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