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                <text>Pictures of Bill Regitz and old technology</text>
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                <text>William Regitz</text>
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                <text>Fall 2020</text>
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                <text>Millersville University Archives &amp; Special Collections</text>
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            <text>Bell Labs Circuit Boards&#13;
These boards were likely used in the No.1&#13;
Electronic Switching System, a machine&#13;
developed to introduce smoother call transfers,&#13;
better call quality, and network efficiency&#13;
&#13;
Transistors&#13;
&#13;
Transformer: A transformer changes&#13;
the voltage of a current. It acts as a&#13;
mediator between high voltage power&#13;
sources and the hardware that requires&#13;
a significantly lower charge.&#13;
&#13;
Diode: A diode allows current to flow in a&#13;
single direction.&#13;
&#13;
Inductor: An inductor smooths out&#13;
voltage fluctuations and stores energy.&#13;
&#13;
Soldering line: Components in these chips&#13;
are surface mounted through holes in the&#13;
board and attached by hand soldering.&#13;
&#13;
Resistor: A resistor is part of the&#13;
architecture for ensuring energy is&#13;
properly directed and rationed in a&#13;
circuit.&#13;
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              <text>Board Descriptions</text>
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