Tube-number record
816
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BrandRCA
ClassHalf-wave mercury-vapor rectifier
Base4-pin
Construction
Primary TypeRectifier
Rectifier TypeMercury-Vapor
EnvelopeST12
Base MaterialSmall-Shell
Sections1
Filament / Heater
MaterialCoated
Warm-up Time10s
Absolute Maximum Ratings
Plate Voltage7500 V
Cathode Current125 mA
Audio Performance
Key Features
- Operating Position: Vertical, base down
- Mercury-vapor
- Half-wave
- Coated filament
- Small cap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier Tube Drop | 15 V | — | — | — | — |
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