Skip the dehydrator, buy yourself a smoker......I've done it both ways, and the Bradley Smoker jerky is soooooo much better.
Buy lean/long roasts, make a jerky board to easily slice 1/4" thick slabs, cure as per directions (I use High Mountain jerky cure and the garlic and black pepper spices), hang in the smoker over oak (my fave), hickory or cherry, smoke for 3-4 hours with vents wide open/no water in the catch bowl, leave smoker element on and vents open for another 6-10 hours until done. Put in a ziploc and right into the fridge (the condensation enhances the smoke flavour), open bag after an hour and enjoy (leave bag open all the time after the initial hour)