GZ33
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ClassFull-Wave Rectifier
BaseOctal
Filament5V @ 3mA
Construction
Primary TypeVacuum Tube
Rectifier TypeIndirectly heated full-wave
EnvelopeGlass
Base MaterialPlastic
SectionsDouble
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage500 V
Cathode Current300 mA
Audio Performance
Key Features
- Indirectly heated
- Full-wave
- Octal base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Capacitor input | 300V | - | 140 | - | 250mA |
| Capacitor input | 400V | - | 200 | - | 250mA |
| Capacitor input | 500V | - | 250 | - | 250mA |
| Choke input | 300V | - | - | - | 300mA |
| Choke input | 400V | - | - | - | 300mA |
| Choke input | 500V | - | - | - | 300mA |
Application Notes
Capacitor and choke input ratings provided.
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