SIGNAL CIRCUITSâ¦â¦ Government Approved Electronic Voting Machines !! Signal Circuits is an innovative manufacturer engaged in R&D in advanced technology for use and help of common people at low cost. Many new high tech products and services are launched by Signal Circuits from its start. Since 2003 Signal Circuits are engaged in manufacturing Government Approved electronic voting machines (EVMs), R&D in advanced technology at low cost for common people.We manufacturer, exporter of Electronic Voting Machine, Multiple Voting Machines, Multi-category Multiple Voting Machines for all types of elections and also conduct elections on contract basis. We conduct elec Read more..