I searched for dummy loads and found nothing on point. If there is and I missed it I apologize. If this is not correct section let me know and I will re-post. We need a high power dummy load in the 4kw range. for the amateur hf bands. The oil cooled "cantenna" type are at the most 1.5 kw. I have acquired 4 of the resistors used in these 1.5kw cantennas. my thought was to put two in parallel and two more in parallel then put those two parallel circuits in series to create a 50 ohm load. the resistors coming from a dummy load application are non inductive. I've seen home brew dummy loads built using parallel resistance to up the watt handling with good results. My completed dummy load displays 52 ohms of resistance. when put on the hf bands, it is good at the lower ones but 4.5:1 in the 10 meter band, in the 28MHZ band. the construction is done on a piece of sched 80 pvc pipe with aluminum heat sinks under each mounting clip. the wire used is 12 gauge stranded copper thhn. crimped lugs were used and then all connections were additionally soldered. the wire lengths could be a bit shorter but are not excessively long. Am I correct in thinking that with increased impedance I'm seeing at higher frequencies is inductance from something? I am anxious to see your thoughts.