[sdiy] 2 multimeters showing different voltages

[jays at aracnet.com]

Scott,

I wouldn't waste time on the PC power supply. They are that good so it probably is putting out 11V. Your RS232 lines and disc drives aren't going to complain.

Don't forget to put a load on the 5V reg as mentioned in an earlier post. Otherwise the reg might not regulate. Also most 7805 type regulators aren't all that accurate either.

Just my 2 cents.
Jay S.

Scott wrote:

> Thanks to everyone for the ideas.  I don't know why I didn't think of
> using a 5v regulator to test, as I have one sitting right here on my
> desk.  I'm just not trusting any of my electronics right now!  Not even
> this regulator :).
> 
> I used Limor's idea, as it was simple for me to do really quickly, and
> the meter reading my synth PSU at +/- 15 v looks to be correct!
> 
> Now I need to figure out why this high end PC PSU is only putting 11v on
> my 12v lines.
> 
> 
> 
>