GL-931-A
0 Tubes in archive
BrandGeneral Electric
ClassMultiplier Phototube
Base11-pin Small-shell Submagnal
Construction
Primary TypeMultiplier Phototube
EnvelopeGlass
Sections11 electrodes (9 dynodes, 1 anode, 1 cathode)
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1250 V
Plate Dissipation0.5 W
Grid 2 Voltage250 V
Cathode Current2.5 mA
Audio Performance
Key Features
- Secondary emission multiplication
- High sensitivity
- Low noise level
- Low dark current
- Freedom from distortion
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 75V per stage | - | - | - | 30000 | - |
| 100V per stage | - | - | - | 200000 | - |
Application Notes
Very useful for relays and in applications involving low-light levels. This tube can multiply feeble currents by weak illuminations as much as 200,000 times.
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