
Tube-number record
18509
0 archive entries
18509 is a tube type in the TubeDatabase archive (class: Micro Radiation Counter Tube). Recorded specifications: brand Philips, construction Other / special, socket Flexible / flying leads, and maximum plate voltage 550 V. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassMicro Radiation Counter Tube
BaseFlexible / flying leads
Construction
Primary TypeOther / special
EnvelopeMetal
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage550 V
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Counter Operation | 450 V | — | 10000000 | — | — |
Application Notes
Because of the small thickness of the cathode wall (0.1 mm) utmost care should be taken when handling the tube. In order to prevent leakage the tube should be kept dry and well cleaned.
Datasheets
Datasheet: 18509.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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