Technology
Introduction
This kit is an option for previous versions (before summer 2014) of RA0052 Artificial Ear Test Jig. In the previous version of RA0052 the arm is designed for two springs only.
If you wish to double the spring force of the previous version of RA0052 then order the kit RA0196. This kit, including four springs, is offered for replacement of the top of RA0052.