drives/ac_variable_frequency_drives_vfd/durapulse_-_gs3_230_-z-_460_vac_sensorless_vector_control

In every haunted house, you’ll find automated props: chairs that rock on their own, slamming doors, rattling chains, drawers opening and closing as if by some supernatural force. These “tricks” enhance the “treat” of getting the life scared out of you. The process behind making a Halloween prop can be quite simple. Here is just…