1) катод
2) анод ( в гальванических и аккумуляторных элементах )
3) эмиттер ( диода, тиристора )
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- activated cathode
- angle cathode
- arc cathode
- arc-resistant cathode
- barium cathode
- basket cathode
- bifilar cathode
- brush cathode
- central cathode
- coated cathode
- cold cathode
- completed cathode
- composite cathode
- dipped cathode
- dip cathode
- directly heated cathode
- dispenser cathode
- drum cathode
- equipotential cathode
- evaporated cathode
- fast-warmup cathode
- field radiating cathode
- field-emission cathode
- filamentary cathode
- film-coated cathode
- film cathode
- flooding gun cathode
- flowing cathode
- flow cathode
- fluidized-bed cathode
- gauze cathode
- gun cathode
- hollow cathode
- hot cathode
- impregnated cathode
- incandescent cathode
- indirectly heated cathode
- ionic-heated cathode
- lining cathode
- liquid cathode
- matrix cathode
- matrix-type cathode
- mercury-pool cathode
- mesh cathode
- molten cathode
- multiple-tiered cathode
- nonplating cathode
- overflow-type cathode
- overflow cathode
- oxide-coated cathode
- oxide cathode
- pasted cathode
- photoelectric cathode
- photoemissive cathode
- photoemitter cathode
- point cathode
- pool cathode
- preheated cathode
- ribbed cathode
- sandwich cathode
- separately heated cathode
- slot cathode
- target cathode
- unipotential cathode
- virtual cathode
- wire cathode