If your a Ham radio enthusiast looking to add a dummy load to your station, don't waste time homebrewing loads that handle marginal power, or have terrible SWR beyond the HF Bands. Don't waste time with those hybrid chip resistors, and mucking about with fans and heatsinks.
Also, don't be tempted by the shiny new 'Ham Brand' products - none of them hold a candle to a Bird 8201 Termaline!
Main Features:
500 Watts Average Power, CONTINUOUSLY. Will handle much higher levels of power for shorter times.
Totally silent, no fans, air cooled.
1.1:1 SWR to 1GHz, 1.25:1 SWR to 2.5GHz
Basically, its everything a Ham could ever want in their shack, a purchase for life. You won't regret it.