Tube-number record
7642
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BrandThe M-O Valve Co. Ltd.
ClassTravelling Wave Tube
BaseFlexible / flying leads
Filament6.3 V @ 1300 mA
Construction
Primary TypeTravelling Wave Tube
EnvelopePackaged with PPM system
SectionsSingle
Filament / Heater
Heater NotesHeater current max is 1370 mA
Absolute Maximum Ratings
Plate Voltage600 V
Grid 2 Voltage480 V
Grid 1 Voltage20 V
Cathode Current7 mA
Audio Performance
Key Features
- Extremely flat r.f. gain
- Periodic permanent magnet system
- Convection cooled
- Coaxial Type N couplers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Intermediate Power Amplifier | 500 V | — | — | — | 6 mA |
Application Notes
The tube is an intermediate power amplifier for telecommunication systems. The collector is normally earthed in practice.
Datasheets
Datasheet: 7642.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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