The term balun (pronounced bal-un) is derived from the function of the passive device that converts between a BAL anced and UNbalanced electrical signal. Common types of baluns convert 100 Ohm twisted pair (balanced) to 75 Ohm coaxial (unbalanced).
Commercial Driver License (Class A, B or C) A commercial driver license (CDL) is required for drivers of heavyweight vehicles, 26,001 lbs. or more gross vehicle weight rating (GVWR), vehicles hauling a trailer that is 10,001 lbs.
Ontario has several classes of licenses designed for different types of vehicle configurations. We have looked at class A and AR(estricted) so now is the time to look at the Class D license which often is very misunderstood. Most people start with a Class G license (G1, G2 and then G).This is often the standard drive the family car or pick up truck around license. Once you start considering heavier vehicles the next class people think about is Class D.ost people start with a Class G license (G1, G2 and then G). This is often the standard drive the family car or pick up truck around license. Once you start considering heavier vehicles the next class people think about is Class D.