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INDIRECTLY HEATED CATHODE [4 records]

Record 1 2013-05-24

English

Subject field(s)
  • Vacuum Tubes (Electronics)
DEF

In an electron tube, a cathode that is directly or indirectly heated.

French

Domaine(s)
  • Tubes et lampes (Électronique)

Spanish

Campo(s) temático(s)
  • Tubos de vacío (Electrónica)
Save record 1

Record 2 2011-08-25

English

Subject field(s)
  • Vacuum Tubes (Electronics)
CONT

Hot cathodes may be either directly heated, where the filament itself is the source of electrons, or indirectly heated, where the filament is electrically insulated from the cathode; this configuration minimizes the introduction of hum when the filament is energized with alternating current. The filament is most often made of tungsten. With indirectly heated cathodes, the filament is usually called the heater instead. The cathode for indirect heating is usually realized as a nickel tube which surrounds the heater.

OBS

indirectly heated cathode : term officially approved by the Electronics and Telecommunications Terminology Committee.

French

Domaine(s)
  • Tubes et lampes (Électronique)
OBS

cathode à chauffage indirect : terme uniformisé par le Comité d’uniformisation des termes de l’électronique et des télécommunications (CUTEL).

Spanish

Campo(s) temático(s)
  • Tubos de vacío (Electrónica)
DEF

Cátodo llevado a alta temperatura por un procedimiento distinto al paso de corriente por él.

Save record 2

Record 3 2003-05-14

English

Subject field(s)
  • Electronics
  • Vacuum Tubes (Electronics)
DEF

An electrically heated element for supplying heat to an indirectly heated cathode.

French

Domaine(s)
  • Électronique
  • Tubes et lampes (Électronique)
DEF

Élément chauffé électriquement et fournissant de la chaleur à une cathode à chauffage indirect.

OBS

(sous-entendu de chauffage, dans un tube à chauffage indirect, amène la cathode à la température d'émission).

Spanish

Campo(s) temático(s)
  • Electrónica
  • Tubos de vacío (Electrónica)
Save record 3

Record 4 1999-08-04

English

Subject field(s)
  • Telecommunications
DEF

An electron tube having an indirectly heated cathode.

French

Domaine(s)
  • Télécommunications

Spanish

Save record 4

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