Tube-number record
MA 12/15000
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BrandPhilips
ClassModulator Tube
Construction
Primary TypeTriode
EnvelopeGlass/Metal (Water-cooled anode)
Sections1
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation12000 W
Audio Performance
Key Features
- Water cooled anode
- High power modulator
- Heising modulation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Modulator / Amplifier | 9000 V | 7500 | 1900 | 14 | 1500 mA |
| Dutch datasheet spec | 9000 V | 9000 | 1400 | 12 | — |
Application Notes
Constructed for plate voltage modulation of water-cooled Philips transmitters. Suitable for modulated H.F. energy on wavelengths over 150 m.
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