Tube-number record
4C27
0 archive entries
4C27 is a tube type in the TubeDatabase archive (class: V.H.F. Coaxial Triode). Recorded specifications: brand National Union, construction Triode, base Metal/Ceramic, socket Coaxial, maximum plate voltage 8000 V, and maximum plate dissipation 150 W. The archive does not yet hold a photographed example of this type.
BrandNational Union
ClassV.H.F. Coaxial Triode
BaseCoaxial
Filament6 V @ 6500 mA
Construction
Primary TypeTriode
EnvelopeCoaxial
Base MaterialMetal/Ceramic
SectionsSingle
Filament / Heater
Heater NotesOxide coated unipotential cathode
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Oscillator, Plate Pulsed | 8000 V | — | — | 23 | — |
Application Notes
Designed particularly for use as a pulsed V.H.F. oscillator in the 200 mc. to 600 mc. range. One tube will deliver 50 kw peak power.
Datasheets
Datasheet: 4C27.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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