I'll answer that: It makes no difference. All copper wire is "oxygen free", because if there is too much oxygen, you can't draw it into wire as it is too brittle. I regularly make measurements with an

Then it is not. ESD safe units are identified with the ESD safe symbols. Older units have the three prong plug, and they are not ESD safe.

Fluke meters are good, but their accuracy is a function of price. Towards the low end, they work well, but only guarantee their AC accuracy to about 2kHz. Their desktop DMMs are accurate into the 100s

Flux just makes the job go better. The rosin core solders work, but the flux can dry out, or you just don't have enough flux for the job. A little flux just makes it work better, and it won't hurt eit

The idea is to be able to route power. What is really important is that the programming track is isolated from the rest of the world, so you can't accidentally bridge the two systems. You need a compl