240N
0 Tubes in archive
BrandAmperex
ClassAlpha-Beta Gamma Counter Tube
BaseStandard Peewee 3 Pin
Construction
Primary TypeHalogen Quenched Geiger-Mueller Tube
EnvelopeProbe tube with mica window
Base MaterialStandard Peewee 3 Pin
Filament / Heater
Absolute Maximum Ratings
Plate Voltage900 V
Audio Performance
Key Features
- Halogen quenched
- Thin mica window
- Stainless steel cathode
- Interchangeable 3-pin base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radiation Counting | 875V | - | - | - | - |
Application Notes
Sensitive to Gamma radiation at tolerance dosage levels. Mica window provides Alpha and Beta sensitivity.
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