hello world! ... end of 2019 warfare today, last working day, monday, 08.55 am! Presenting you how to connect the SPDT switch relay (double throw toggle switch turns one of two circuits on and off)..absolutly a big fuck for bombs squads from the "system" ...if they jam and shut off the rf circuit, ignitions is on again..and bum! This video shows you how to control the direction of rotation for a DC motor, using a DPDT (double pole double throw) slide switch (with center off).