Wareegtada wareegtadu waa nooc ka mid ah dareemaha wareegta gacanta si loo xakameeyo deminta xidhiidhka ugu muhiimsan. Waxa kale oo jira laba qaab dhismeed oo ah furayaasha rotary, kuwaas oo kala ah, qaab-dhismeed unug hal tiir ah iyo qaab dhismeed badan oo meelo badan leh. Dareeshooyinka wareegtada hal cirifka ah ayaa inta badan lala isticmaalaa potentiometer rotary ee codsiyada, halka dareemaha rotary-ga badan ee boosaska badan leh inta badan loo isticmaalo wareejinta wareegga shaqada ee gobolka.