Tube-number record
721-B
0 archive entries
721-B is a tube type in the TubeDatabase archive (class: Gas Switching Tube). Recorded specifications: brand Raytheon Manufacturing Company, construction Other / special, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandRaytheon Manufacturing Company
ClassGas Switching Tube
Construction
Primary TypeOther / special
EnvelopeGlass/Metal disc seal
SectionsThree
Filament / Heater
Absolute Maximum Ratings
Plate Dissipation1 W
Grid 1 Voltage-1000 V
Audio Performance
Key Features
- Special disc processing increases life by a factor of 4 in comparison with the type 721A
- Hydrogen ionizable medium
- Mounting position: any
Application Notes
Recovery time measured as follows: F=2800 to 3330 Mc; magnetron Po=50 Kv; pulse rate = 1000 pps; tp=1.0 usec (R-F); SWR=1.2 (mag. load).
Datasheets
Datasheet: 721-B.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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