I would like to buy a dummy load to test some of my radios but not sure what to get. Right now my capability is 6 to 160 meter and 100 watts. Ive seen all kinds of shapes and sizes, dry, oil, some with meters. I have a MFJ872 swr/watt meter. Just looking to be able to safely test my radios. Any suggestions pointing me in the right direction would be appreciated.