Tube-number record
CERAMIC HYDROGEN DIODE
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BrandKuthe ITT
ClassRectifier and Pulse Transformer Backswing Diode Clipper
BaseSpecial / none
Filament5 V @ 23000 mA
Construction
Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeCeramic
Base MaterialCeramic
SectionsSingle
Filament / Heater
MaterialOxide coated
Warm-up Time300s
Heater NotesCathode connected to center of cathode heater.
Absolute Maximum Ratings
Plate Voltage33000 V
Cathode Current3000 mA
Audio Performance
Key Features
- Ceramic envelope
- Hydrogen filled
- Low tube voltage drop
- Wide range of ambient operating temperatures
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | 26000 V | — | — | — | 45 mA |
| Backswing Diode Clipper | 33000 V | — | — | — | 3000 mA |
Application Notes
Baffle should be left floating for rectifier service and connected to the cathode for clipper service. Air blast cooling (10 CFM) recommended for high ambient temperatures.
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