9AK8
0 Tubes in archive
BrandRogers Majestic Electronics Ltd.
ClassTriple Diode Triode
BaseSmall button noval 9-pin
Filament9.5V @ 300mA
Construction
Primary TypeTriple Diode Triode
EnvelopeGlass
Base MaterialSmall button noval 9-pin
Sections4 (3 diodes + 1 triode)
Filament / Heater
Heater Notes9.5V 300mA series heater string
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation1 W
Grid 1 Voltage-1.3 V
Cathode Current5 mA
H-C Voltage150 V
Audio Performance
Key Features
- Triple diode triode structure
- Designed for video and audio signal detection
- Series heater string application
- Low microphonic triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 100V | 1300 | 54000 | 79 | 0.8mA |
| Triode Section | 170V | 1300 | 54000 | 70 | 1mA |
| Triode Section | 200V | 1250 | 56000 | 70 | 1mA |
| Triode Section | 250V | 1200 | 58000 | 70 | 1mA |
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results