
Tube-number record
18509/02
0 archive entries
18509/02 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 650 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 Wall
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage650 V
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operating Plateau | 500 V | — | 2000000 | — | — |
Application Notes
Low capacitance mounting of the counter tube is required (short connections). Because of the small thickness of the cathode wall (0.1 mm) utmost care should be taken at handling the tube. In order to prevent leakage the tube should be kept dry and well cleaned.
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