i got a large number of about 12kohms. am i on the right part?
sounds reasonable. try it on a breadboard with a multimeter first if you arent sure . . .
do you know how much Mc Master cost to ship or do you know somewhere cheaper to get HDPE?
you can find many suggestions in the forum:
hardware store (homedepot, lowes), kitchen cutting board, mcmaster, etc.
do you know how much Mc Master cost to ship
hmmmm have you checked the site? i order all the time from mcmaster, but i always have my coworkers handle the ordering so i never see the final price . . . i don't remember it being too expensive, and i always get my stuff within 2-3 days, but depends on size/weight of what you order, too . . .