Tube-number record
30C9
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30C9 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand EDISWAN, construction Display / CRT, socket CRT base (B12 family), and maximum plate voltage 4000 V. The archive does not yet hold a photographed example of this type.
BrandEDISWAN
ClassCathode Ray Tube
BaseCRT base (B12 family)
Filament4 V @ 720 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle-gun
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage4000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Measurement focus | 2200 V | — | — | — | — |
Application Notes
The 30C9 is a precision constructed instrument for applications where the accuracy of the gun construction employed in compass tubes is required. The gun system is capable of providing high beam currents for pulse modulation of the grid.
Datasheets
Datasheet: 30C9.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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