X-393
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BrandITT (International Telephone and Telegraph Corporation)
ClassBackward Wave Amplifier Tube
BaseColor Coded Flying Leads
Filament6.3V @ 3500mA
Construction
Primary TypeBackward Wave Amplifier
EnvelopeGlass envelope mounted in an aluminum capsule
Base MaterialAluminum capsule
SectionsSingle
Filament / Heater
Heater NotesDC
Absolute Maximum Ratings
Plate Voltage250 V
Cathode Current4 mA
Audio Performance
Key Features
- S-band backward wave amplifier
- Helical wave propagation structure
- Electronically tuned pass band
- Medium noise r-f amplifier
- Continuous beam operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 2200 MHz Center Frequency | 200V | - | - | - | 1.9mA |
Application Notes
The X-393 is designed for use as a narrow band medium noise r-f amplifier with a pass band that can be electronically tuned over the frequency range of 1470 to 2670 megacycles. It requires a solenoid to focus the electron beam.
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