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WET Dummy loads!
The fluid used in a wet dummy load is to dissipate the heat produced by that resistor in the dummy load. That fluid needs to be able to handle a lot of heat. So, a flammable fluid isn't a good idea, right?
Some of the commonly used fluids are mineral oil, transformer oil (not too common/cheap), and peanut oil. Pick whatever is easiest for you to get/$$$.
The two important factors are the stuff needs to be nonconductive, and can dissipate a large amount of heat. DON'T use motor oil, transmission fluid, etc!!
Paul

[QUOTE="Paul-W5lz, post: 593975, member: 50240"] WET Dummy loads! The fluid used in a wet dummy load is to dissipate the heat produced by that resistor in the dummy load. That fluid needs to be able to handle a lot of heat. So, a flammable fluid isn't a good idea, right? Some of the commonly used fluids are mineral oil, transformer oil (not too common/cheap), and peanut oil. Pick whatever is easiest for you to get/$$$. The two important factors are the stuff needs to be nonconductive, and can dissipate a large amount of heat. DON'T use motor oil, transmission fluid, etc!! Paul [/QUOTE]

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