Tube-number record
18538
0 archive entries
18538 is a tube type in the TubeDatabase archive (class: Geiger-Müller counter tube). Recorded specifications: brand Philips, construction Other / special, and maximum plate voltage 1100 V. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassGeiger-Müller counter tube
Construction
Primary TypeOther / special
EnvelopeMica end window
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1100 V
Audio Performance
Key Features
- Halogen quenched
- Mica end window
- Krypton filling
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| GM Counter | 1000 V | — | 5400000 | — | — |
Application Notes
Shielded with 2 inch Pb and 1/4 inch Al for background measurement. Recommended circuit requires minimum series resistance of 5.4 MOhm.
Datasheets
Datasheet: 18538.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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