Tube-number record
TRAVELING-WAVE TUBE
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BrandRCA
ClassMicrowave Tube
BaseFlexible / flying leads
Filament6.3 V @ 1.75 mA
Construction
Primary TypeOther / special
EnvelopeMetal Shell
Base MaterialMounting Blocks
SectionsSingle
Filament / Heater
MaterialBarium-impregnated tungsten
Warm-up Time3s
Heater NotesMinimum Cathode Heating Time: 3 minutes; Starting current must never exceed 4 A.
Absolute Maximum Ratings
Plate Voltage3000 V
Grid 2 Voltage1700 V
Cathode Current80 mA
Audio Performance
Power Output20 W
Key Features
- Integral Periodic-Permanent-Magnet Type
- Forced-air cooling on collector necessary
- Operating Position: Any
- Phase Sensitivity: 2 deg/V max
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier at 2.0 GHz | 2200 V | — | — | — | 70 mA |
Application Notes
The power supply should incorporate a helix-current overload protective device to prevent damage. Apply voltages in sequence: Heater, then Collector, then Helix, then Grid-No.2. Keep magnetic materials at least eight inches away.
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