<div class="description">
<p>4.  Trays containing the "green" substrates are placed into large ceramic kilns for an initial firing.  Programmed electronic controls automatically cycle the firing temperatures from ambient to approximately 2,400°F.  By carefully controlling the raw material processes and pressing operation, substrate dimensional tolerances after firing are held to within +/- 0.0015".  After firing, the substrates are tumbled to remove fired flash and sharp edges.  The substrate surface is now ready to receive the resistive and conductive materials. 
</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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