80
0 Tubes in archive
ClassFull-Wave Rectifier
BaseMedium 4-Pin
Construction
Primary TypeFull-Wave Rectifier
Rectifier TypeFull-Wave
EnvelopeST-14
SectionsDouble Plate
Filament / Heater
MaterialCoated
Absolute Maximum Ratings
Plate Voltage530 V
Cathode Current135 mA
Audio Performance
Key Features
- Full-wave rectifying tube
- Coated filament
- Step-down transformer operation
- ST-14 Bulb
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RMS Plate Voltage per plate | 350V | - | - | - | 125mA |
| RMS Plate Voltage per plate | 400V | - | - | - | 110mA |
| RMS Plate Voltage per plate (Choke Input Filter) | 530V | - | - | - | 135mA |
Application Notes
The 80 is a full-wave rectifying tube intended for use in d-c power-supply devices. It can be mounted vertically, or horizontally if the filament-pin openings are positioned at the top or bottom to keep the filament-plane vertical. Provision should be made for free air circulation as the bulb becomes quite hot.
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