Not really amp related, but I am working with a family to sell off an SK's equipment. I have a dummy load with an N connector on it with no markings at all. It is 3" X 6" and is round with thick fins. Does anyone have a clue what freq it is for, or how to determine it? The guy had a lot of 6M, 2M, 220Mhz equipment and antennas. Mike Mike Short AI4NS AI4NS at arrl.net