E181CC
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BrandPhilips
ClassDouble Triode
BaseNoval
Filament6.3V @ 400mA
Construction
Primary TypeDouble Triode
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesIndirect by A.C. or D.C.; parallel supply
Absolute Maximum Ratings
Plate Voltage275 V
Plate Dissipation2 W
Grid 1 Voltage-100 V
Cathode Current20 mA
H-C Voltage200 V
Audio Performance
Key Features
- Special Quality
- Computer circuits application
- Maintains emission capabilities after long periods under cut-off
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 100V | 5600 | 5700 | 32 | 8.5mA |
| Triode Section | 150V | 4700 | 6500 | 30 | 8.5mA |
| Computer circuit design | 100V | 3600 | - | - | 4.6mA |
Application Notes
The E181CC is not intended for use in circuits critical to hum, microphony, and noise.
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