<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>Yes, as long as they are clean. That is the problem, it depends on contact between two components and the friction wears them out.</DIV>
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<DIV>I remember years ago that the large heathkit (and possibly some Kraft) servos used variable capacitors for feedback. not much to wear.</DIV>
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<DIV>Ok, Jay, how long ago were the "days" you were talking about? :-) </DIV>
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<DIV>Bob R.</DIV>
<DIV><BR><BR>--- On <B>Sun, 6/21/09, Jay Marshall <I><lightfoot@sc.rr.com></I></B> wrote:<BR></DIV>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I remember from my days in control systems theory that the analog computers were faster and more accurate than the </SPAN></FONT><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">IBM</SPAN></FONT><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> big iron computers. Analog pots are still cheaper, lighter, and higher resolution than digital encoders – as long as they are clean…</SPAN></FONT></DIV>
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