Tube-number record
1B85
0 archive entries
1B85 is a tube type in the TubeDatabase archive (class: Beta Gamma Counter Tube). Recorded specifications: brand Victoreen, construction Other / special, base Metal, socket Coaxial, and maximum plate voltage 950 V. The archive does not yet hold a photographed example of this type.
BrandVictoreen
ClassBeta Gamma Counter Tube
BaseCoaxial
Construction
Primary TypeOther / special
EnvelopeThin-walled Aluminum Shell
Base MaterialMetal
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage950 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Geiger Counting | 900 V | — | — | — | — |
Application Notes
Widely used in portable survey instruments, area monitoring, and precision laboratory measuring equipment. Ideally suited for multiple tube counters and coincidence circuits.
Datasheets
Datasheet: 1B85.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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