| FIGURE 1 |
 |
| A string of resistors and a CMOS multiplexer/demultiplexer under the control of a microcontroller replaces an analog potentiometer. |
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| FIGURE 1 |
|
| A string of resistors and a CMOS multiplexer/demultiplexer under the control of a microcontroller replaces an analog potentiometer. |
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