Tube-number record
7C30
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7C30 is a tube type in the TubeDatabase archive (class: High Vacuum Triode). Recorded specifications: brand Federal Telephone and Radio Corporation, construction Triode, base Metal cooling fins, maximum plate voltage 6000 V, and maximum plate dissipation 3000 W. The archive does not yet hold a photographed example of this type.
BrandFederal Telephone and Radio Corporation
ClassHigh Vacuum Triode
Construction
Primary TypeTriode
EnvelopeGlass/Metal
Base MaterialMetal cooling fins
Sectionssingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage6000 V
Plate Dissipation3000 W
Grid 1 Voltage-1000 V
Cathode Current2000 mA
Audio Performance
Key Features
- Forced-air cooling
- Thoriated tungsten filament
- Power Amplifier
- Oscillator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C CW Telegraphy | 6000 V | — | — | — | 1600 mA |
| Class C Telephony (Plate Modulated) | 5000 V | — | — | — | 1000 mA |
Application Notes
Mounting Position: Vertical, anode down. Direction of air flow: Up.
Datasheets
Datasheet: 7C30.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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