Tube-number record
CW TRAVELING WAVE TUBE
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BrandNippon Electric Company Limited
ClassMicrowave Tube
BaseSpecial / none
Filament6.3 V @ 700 mA
Construction
Primary TypeOther / special
EnvelopeGlass and Metal
Base MaterialRadiator for cooling
SectionsSingle
Filament / Heater
MaterialOxide Coated, Unipotential
Warm-up Time90s
Heater NotesUni-potential cathode
Absolute Maximum Ratings
Plate Voltage2000 V
Plate Dissipation63 W
Grid 2 Voltage3000 V
Grid 1 Voltage-15 V
Cathode Current35 mA
Audio Performance
Power Output15.6 W
Key Features
- PPM Focused
- Field Replaceable
- Depressed Collector Operation
- Conduction and Natural Convection Cooling
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 3.7 GHz operation | 1700 V | — | — | — | 35 mA |
| 4.0 GHz operation | 1700 V | — | — | — | 35 mA |
| 4.2 GHz operation | 1700 V | — | — | — | 35 mA |
Application Notes
The LD-597A is designed for CW operation in the 3.6-4.2 GHz band. It features a depressed collector to improve efficiency. Forced air cooling is required if ambient exceeds 55C.
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