Tube-number record
889
0 archive entries
889 is a tube type in the TubeDatabase archive (class: Transmitting Triode). Recorded specifications: brand RCA, construction Triode, base Metal, maximum plate voltage 8500 V, and maximum plate dissipation 5000 W. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassTransmitting Triode
Construction
Primary TypeTriode
EnvelopeGlass/Metal
Base MaterialMetal
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage8500 V
Plate Dissipation5000 W
Audio Performance
Key Features
- Water cooled
- High power transmitting triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier Class C | 8000 V | — | — | 10 | 1000 mA |
Application Notes
Commonly used in broadcast transmitters and industrial RF heating.
Datasheets
Datasheet: 889.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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