Tube-number record
PMU-426
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ClassPulse Modulator Triode
Filament26 V @ 3200 mA
Construction
Primary TypeTriode
Envelopemetal-ceramic
Sectionssingle
Filament / Heater
Materialoxide-coated
Warm-up Time3s
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage30000 V
Plate Dissipation500 W
Grid 1 Voltage-600 V
Cathode Current33000 mA
Audio Performance
Key Features
- Indirectly heated
- Oxide-coated cathode
- Metal-ceramic construction
- Forced air cooling
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pulse Modulator | 2500 V | — | — | — | 30000 mA |
Application Notes
Used for pulse power switching in pulse modulators in RF equipment.
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