Dummy load kit

[mikeselectricstuff]

Dummy loads seem a popular topic here so thought I'd mention this kit I spotted :
http://www.arachnidlabs.com/blog/2013/02/05/introducing-re-load/

[george graves]

I built up a version almost identical to dave's.  The thing I've found is that you really need a multiturn pot and a display (mine is lacking a display - and it's a not nearly as convenient I suspect.

[c4757p]

The thing I've found is that you really need a multiturn pot and a display

For my quick-and-easy all-analog one, I used a range switch - a double-deck rotary switch to switch both load and sense lines on the sense resistors. I like it better than a pot because it isn't so easy to bump the knob and go from 10mA to 3A... Honestly I have no clue what current it's rated for - it came out of the junk pile - but I have yet to blow it, so it's good enough for me!  I connected it to a shitty panel meter, but it's so cheap and nonlinear that I also ran the internal 1V FS sense signal to the front panel for quick connection of a multimeter.

[mariush]

It looks ok but i don't like it that they cheap'ed out on components...

y5v ceramic capacitors (yeah, unlikely to matter for a 0.1uf but still),
10uf multicomp electrolytic (chinese crap), 
somewhat weird resistor choice (0.1v for 1A ? kinda hard to read mA of current with a cheap multimeter)

I think they could have shoved a 2-3 digit led and a small attiny or pic and show the current directly on the board. Adds only 2-3$ extra to the bom.