ROKET88 RTP SLOT These types can be used for precision works. A switch with both types of contact is called a changeover switch or double-throw switch. Contact bounce (also called chatter) is a common problem with mechanical switches, relays and battery contacts, which arises as the result of electrical contact resistance (ECR) phenomena at interfaces. Use of mercury-wetted contacts, but these are now infrequently used because of the hazards of mercury.|Togeluga Battle Cats: One {Question|Query} {You don't|You do not} {Want to|Need to|Wish to} Ask Anymore