Tube-number record
872-A / 872
0 archive entries
BrandEimac
ClassMercury Vapor Rectifier
Base4-pin
Construction
Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeT-18
SectionsSingle
Filament / Heater
MaterialCoated shielded ribbon
Warm-up Time30s
Absolute Maximum Ratings
Plate Voltage10000 V
Cathode Current1250 mA
Audio Performance
Key Features
- Shielded ribbon filament
- Edgewise-wound
- Large emission reserve
- High peak-inverse voltage
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | — | — | — | — | — |
Application Notes
Mount vertically, base down. Initial installation requires 10 minutes filament operation without plate voltage. 30 seconds minimum warmup recommended for normal operation. Recommended condensed-mercury temperature is 40 degrees +/- 5 degrees C.
0 results