Tube-number record
3CX4500F3/YU108
0 archive entries
3CX4500F3/YU108 is a tube type in the TubeDatabase archive (class: Medium-Mu Industrial Triode). Recorded specifications: brand Svetlana, year 1997, construction Triode, socket Special / none, maximum plate voltage 9000 V, and maximum plate dissipation 6000 W. The archive does not yet hold a photographed example of this type.
BrandSvetlana
ClassMedium-Mu Industrial Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeCeramic/Metal
SectionsSingle
Filament / Heater
MaterialThoriated-tungsten mesh
Absolute Maximum Ratings
Plate Voltage9000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier or Oscillator, Class C, FM or CW | 8000 V | — | — | 22 | 2750 mA |
Application Notes
When air is supplied in the anode-to-base direction, a minimum of 5 cfm must be directed into the filament-stem structure to maintain the base seals below 250˚ C.
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