Tube-number record
15J12
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15J12 is a tube type in the TubeDatabase archive (class: Forced Air Cooled Triode). Recorded specifications: brand Ediswan, construction Triode, base Special, socket Special / none, maximum plate voltage 7000 V, and maximum plate dissipation 4300 W. The archive does not yet hold a photographed example of this type.
BrandEdiswan
ClassForced Air Cooled Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeExternal Anode
Base MaterialSpecial
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage7000 V
Plate Dissipation4300 W
Cathode Current40000 mA
Audio Performance
Power Output900 W
Key Features
- Forced air cooled
- Directly heated
- Thoriated tungsten filament
- External Anode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C (3-phase/DC) | 4000 V | 5100 | 4313.7 | 22 | 1068 mA |
| Class C (3-phase/DC) | 5000 V | 5100 | 4313.7 | 22 | 993 mA |
| Class C (3-phase/DC) | 6000 V | 5100 | 4313.7 | 22 | 930 mA |
Application Notes
Intended for use in r.f. heating equipment. Connection should be made to both grid pins when running at higher frequencies. Minimum forced air blast of 60 cu.ft/min required.
Datasheets
Datasheet: 15J12.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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