Tube-number record
6836/FW118
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BrandITT Laboratories
ClassMultiplier Phototube
Base20/21-pin
Construction
Primary TypeMulti-section
EnvelopeEnd-window
Sections16-stage
Filament / Heater
Absolute Maximum Ratings
Plate Voltage2250 V
Plate Dissipation0.03 W
Cathode Current0.1 mA
Audio Performance
Key Features
- 16-stage multiplier
- Electron lens system
- Defining aperture
- Reduced thermionic emission current
- External magnetic field deflection capability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 1800V DC overall voltage | 1800 V | — | — | 10000000 | 0.1 mA |
Application Notes
An electron lens system with a defining aperture is incorporated between photocathode and first dynode to improve equivalent noise input by reducing collected thermionic emission and ion feedback.
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