[Test-Equipment] Shorting plugs for calibrating HP meter?

[rbethman]

Any good hobby shop "should" have both brass and copper tubing in these 
small diameters.

If worse comes to worst, one can try metal shops for scraps, or the home 
improvement store - which have copper flashing.

Also look at ACE Hardware or something similar for "small" sheet stock 
as that used for shimstock.  It comes in steel, brass, and copper.

Roll around your favorite "round" item to achieve the proper size and shape.

Bob - N0DGN

On 11/6/2010 2:08 PM, DaveC wrote:
> The service docs for the HP 34401A DMM say that in order to calibrate
> the zero V. spec, all 4 jacks on the 4-wire input to the meter must
> be shorted together using a "4-wire copper short". It doesn't say
> copper wire, so I envision a piece of copper clad PCB with 4 plugs
> soldered to it.
>
> But all the banana jacks I can find are all nickel-plated (or such).
>
> Ideas? Suggestions?
>
> Thanks,
> Dave