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.
Class A Driver License permits. Is a step in preparation for Class A drivers to become a Commercial Driver. Class B CDL driver. Class B is designed to transport 16 or more passengers (including driver) or more than 8 passengers (including the driver) for compensation.