Tube-number record
K-1211
0 archive entries
K-1211 is a tube type in the TubeDatabase archive (class: Photo-Multiplier Tube). Recorded specifications: brand DuMont, construction Multi-section, socket Noval (B9A), maximum plate voltage 1300 V, and maximum plate dissipation 0.5 W. The archive does not yet hold a photographed example of this type.
BrandDuMont
ClassPhoto-Multiplier Tube
BaseNoval (B9A)
Construction
Primary TypeMulti-section
EnvelopeEnd-window, 3/4 inch diameter
Sections6
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1300 V
Plate Dissipation0.5 W
Cathode Current0.01 mA
Audio Performance
Key Features
- End-window type
- 6-stage multiplier
- 3/4 inch diameter
- Tentative data
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 150 V/stage | 150 V | — | — | 3000 | — |
Application Notes
The Du Mont Type K-1211 is a 3/4 inch diameter, 6 stage, photo-multiplier tube of the end-window type. Voltage between photo-cathode and dynode no. 1 is recommended at 300 volts.
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