Tube-number record
8403
0 archive entries
8403 is a tube type in the TubeDatabase archive (class: Planar Triode). Recorded specifications: brand EIMAC, year 1971, construction Triode, base Metal, socket Coaxial, maximum plate voltage 2500 V, and maximum plate dissipation 100 W. The archive does not yet hold a photographed example of this type.
BrandEIMAC
ClassPlanar Triode
BaseCoaxial
Filament6.3 V @ 1300 mA
Construction
Primary TypeTriode
EnvelopeMetal/Ceramic
Base MaterialMetal
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated, unipotential cathode
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 1000 V | 30000 | — | 80 | 160 mA |
| Grounded Grid CW Oscillator | 900 V | — | — | — | — |
| Grid Pulsed Oscillator | 2000 V | — | — | — | 4000 mA |
Application Notes
The design of the tube permits operation from low frequencies up to 3.0 GHz as a grid-pulsed, plate-pulsed, or CW oscillator, amplifier, or frequency multiplier.
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