DRO350 Earthing

Over the years, jitter has been a recuring problem with the DRO350, and much work has been done to improve things, but it was finally identified as being due to noise on the earth connections to the scales. The quick modification to this for our European kits is to simply connect the three earth wires to the power 0V connection as in the picture.

There is very little difference between the connection to here, and direct to the PCB as detailed by Rick Sparber in his summary article on the problem.
Rick also has a number of other useful DRO350 articles detailing the path to this solution.