Tube-number record
5690
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BrandRCA
ClassFull-Wave Vacuum Rectifier
BaseOctal
Filament6.3 V @ 2400 mA
Construction
Primary TypeRectifier
Rectifier TypeFull-Wave
EnvelopeT-12
Base MaterialNon-Hygroscopic
Sections2
Filament / Heater
Heater NotesPure Tungsten for Unipotential Cathodes; Series or Parallel connection
Absolute Maximum Ratings
Plate Voltage1120 V
Cathode Current375 mA
H-C Voltage400 V
Audio Performance
Key Features
- 10,000-hour life
- Extreme uniformity
- Rigid construction
- Exceptional stability
- Special Industrial and Aircraft applications
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Full-Wave Rectifier, Capacitor-input Filter | 700 V | — | 350 | — | 110 mA |
| Full-Wave Rectifier, Choke-input Filter | 700 V | — | — | — | 135 mA |
Application Notes
Intended for critical applications where life and stability are paramount. If capacitor-input circuits are used, protect against hot-switching transients exceeding 3 amperes per plate.
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