<div class="description">
<p>1. Steatite, the ceramic composition used as a base for the Helitrim 
trimming potentiometer elements, is prepared in specially constructed,
temperature-controlled rooms. Quality raw materials (high purity talc and 
clay) of which the steatite is composed are first precisely measured.
Ingredients are then thoroughly mixed with water in a ball milling process 
to make a homogeneous slurry.  The mixture is then piped under pressure into 
a filter press where the moisture content is reduced to a predetermined
level. Batches are isolated from each other throughout the entire steatite process.  In addition all tools, equipment and facilities are thoroughly
cleaned between batches. This extra care results in a higher quality and a more reliable end product. 
</p>
Published without a copyright notice in "The making of a cermet trimmer, 1966" in Beckman Instruments' newsletter <i>Helinews</i>, number 36, Spring 1966, pp. 4-5.  Part of a two-page spread detailing the process of manufacturing cermet trimmers.</div>
<div class="fn value">
Herb Radin and Associates</div>
1966<div style="display: none;">date QS:P571,+1966-00-00T00:00:00Z/9</div>
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