ADL-1500 1.5kW Dummy Load with Oil

STRANGE LOOKING POPCORN COOKER

Ok

Paint can shipped empty, with separate jug of oil. Have to remove cover to fill paint can. Once filled, oil seeps out of the top of the paint can around coax connector. I sure hope its not toxic. No label on the jug. Could be leftovers from Love Canal for all I know.

works for me

Works ! Great!

Works great

Arrived in good condition and performed as expected. No problems.

Brief here is the operative word. Though "rated" for 1500 watts, if you leave your rig + 1500w amp keyed for longer than 30 seconds, you're apt to wind up with an oily mess on your hands. With the high power resister totally submerged in the oil (as it must be) that leaves very little room at the top of the can for expansion, which happens quickly as the oil gets hot. So the oil expands and within about 60 seconds you have hot mineral oil bubbling out of the vent hole & the top of the can becomes very hot. 10~15 second full-power tuneups are fine, but then wait a minute or 2 before doing it again. For safety, keep the can sitting in an aluminum pie tin with several paper towels in the pie tin (under the can). This will help absorb any oil expelled from overheating and help keep your significant other happy.At 500 watts you don't have to be quite so careful, but remember that it's still not intended for continuous duty or commercial service.Above all, don't believe the de-rating curve on the side of the can. It says "minutes" when it should say "seconds". Voice of experience here.Beware also that with longer tuneups that the 50Ω resistor will change in value, which will indicate that the SWR is increasing, which in fact it is. Once the resistor gets hot, the SWR of your dummy load will quickly reach 1.25:1 when it likely started out at only 1.02:1 (where it should be). It's a very good product when used with some common sense. Keep your tuneups under 30 seconds (total) and you should be OK.