7136
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BrandAmperex
ClassHigh-voltage mercury vapor rectifier
BaseJumbo 4-pin (Johnson 123-211-100)
Construction
Primary Typemercury vapor rectifier
Rectifier Typesingle anode
Envelopeglass
Base MaterialJumbo 4-pin with bayonet
Sections1
Filament / Heater
Materialoxide coated
Warm-up Time60s
Absolute Maximum Ratings
Plate Voltage15000 V
Cathode Current2500 mA
Audio Performance
Key Features
- High-voltage mercury vapor rectifier
- Directly heated cathode
- Replacement for 875A
- Greater reliability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single-phase full-wave, 2 tubes | 5300V | - | - | - | 5000mA |
| Three-phase half-wave, 3 tubes | 6100V | - | - | - | 15000mA |
| Three-phase full-wave, 6 tubes | 10600V | - | - | - | 7500mA |
Application Notes
For optimum performance, a phase shift of 90 degrees +/- 30 degrees between anode and filament voltages is recommended. For new designs, Amperex 6693 is preferred.
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