This is the "Fail" documentation of my dummy load experiments. I decided to make a high-power dummy load for use with my AL-80B. My goal was to make a dummy load capable of taking the output from my AL-80B for about 30 seconds using "mostly" parts that I have laying around. The resistors are RF-Florida, flange mount, 250 watt termination resistors at 50 ohms. To string them together in the correct configuration, I had to put some in parallel and some in series. I came up with a 3X3 configuration that would result in a 50 ohm impedance at the end. 3 banks in series, each bank containing 3 50 ohm resistors. The first go-round was semi successful. Even without dunking the thing in oil it was taking the 1Kw output power like a champ. Heat dissipation was pretty even as measured by my IR thermometer. However, due to the configuration I used to mount the thing inside of a paint can, there were some inductance issues. SWR started out good, but climbed to an unacceptable level quickly. My second attempt was much better as far as SWR goes. I inverted the mounting plates so that the resistors are at a closer distance from each other, and used a "center-fed" design in an effort to minimize inductance. This minimized the wire inside the dummy load, and effectively solved the inductance issue. Problem solved? Not so much. Now there is an RF issue (which I can't put my finger on at the moment). One of the resistors started arcing within about 5 seconds of testing. Chalking it up to a bad solder job, I promptly replaced it with a spare. Testing again, the new one arced itself to death within about 10 seconds at reduced power output. Guess I'm going to have to start from scratch. More to come as soon as more resistors get here in the mail.