Testing a Cheap Multimeter Answered
It's been years since I had an expensive meter. These days, I have meters in the $5 to $20 range. Usually they're accurate enough for my purposes, but what if I want to be really certain? Is there a way without a pricey meter to test em? Perhaps calibrate the meter by checking v coming out of a v regultor. Would that be accurate? Perhaps the 7805 regulator which is supposed to output 5v. y?n? M?