One semester in college, I was working on my project. doing a lot of coding and debugging at my desk. The PSU on the project was a switcher that "floated on the AC" and was not always grounded (if the project was hooked up to the serial port on the PC, it was grounded, otherwise, it was not -- firmware upgrade happened via a pair of EPROMS. The 25-minute UV kind. Those were the days.). Every once in a while, I would get a sharp jab on my knee and I was convinced that there was a burr on the case of my computer that I was somehow hitting every once in a blue moon. Finally figured out that it was happening when my hand was on the board, and the knee brushed against the chassis.
Yup, enough to hurt. On Fri, May 3, 2013 at 12:58 PM, andy pugh <[email protected]> wrote: > On 3 May 2013 20:54, Eric Keller <[email protected]> wrote: > > I suppose it's floating relative to ground and when you use yourself or > > anything else to ground it, there will be little or no energy > transferred. > > Enough energy to hurt. > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > > > ------------------------------------------------------------------------------ > Get 100% visibility into Java/.NET code with AppDynamics Lite > It's a free troubleshooting tool designed for production > Get down to code-level detail for bottlenecks, with <2% overhead. > Download for free and get started troubleshooting in minutes. > http://p.sf.net/sfu/appdyn_d2d_ap2 > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
