GY501
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BrandTelefunken
ClassHigh-voltage half-wave rectifier
BaseMagnoval
Filament3.15V @ 400mA
Construction
Primary Typediode
Rectifier Typehalf-wave
Envelopeglass
Sectionssingle
Filament / Heater
Heater NotesIndirectly heated, parallel supply
Absolute Maximum Ratings
Plate Voltage27500 V
Cathode Current1.7 mA
Audio Performance
Key Features
- Indirectly heated
- X-ray production warning
- Anti-spraying ring support
- Any mounting position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectification of line flyback pulses | 25000V | - | - | - | 1.5mA |
Application Notes
The filament voltage must be adjusted to the nominal value at the expected mean DC load. Negative voltage peaks caused by decay of oscillation must be considered.
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