{"id":1172,"date":"2020-11-17T15:38:00","date_gmt":"2020-11-17T12:38:00","guid":{"rendered":"https:\/\/yo9eat.com\/log\/?p=1172"},"modified":"2020-11-15T15:43:13","modified_gmt":"2020-11-15T12:43:13","slug":"easy-50%cf%89-50w-dummy-load","status":"publish","type":"post","link":"https:\/\/yo9eat.com\/log\/easy-50%cf%89-50w-dummy-load\/","title":{"rendered":"Easy 50\u2126 50W dummy load"},"content":{"rendered":"\n

Well, as I’m pretty much out of radio activity due to cold weather (no more balcony fishing pole) and the magloop build fail<\/a>, it’s time to catch up on some backlogged projects. One year after getting my ticket, it’s time to build a dummy load !<\/p>\n\n\n\n

Now, there are many ways to do this and I wanted the most elegant one (no packs of 1\/2W resistors for me). For a dummy load, you basically need a pure 50\u2126 resistor with good thermals (needed to dissipate the power generated and transformed into heat) and no reactance. So, off to Aliexpress again and got these resistors<\/a> which claim to do 250W. <\/p>\n\n\n\n

Add a PL-259 connector, some 1 mm enameled wire because it was lying around, an old PC PSU heatsink and some 3D printing – voila !<\/p>\n\n\n\n