The variable resister must be available as I was quoted $400.00 for a rebuilt AFM. ---------- >From: Automatic digest processor <LISTSERV@GERRY.VANAGON.COM> >To: Recipients of vanagon digests <vanagon@GERRY.VANAGON.COM> >Subject: vanagon Digest - 14 Jul 2003 - Special issue (#2003-712) >Date: Mon, Jul 14, 2003, 6:43 PM > > Subject: Re: AFM resistance test > > >> Been there, done that-- >> I would strongly suggest that you remove the AFM ( not difficult ), clean > it >> up in some gas, remove the cover, and carefully examine the thing. The >> little white resistance element is clearly visible, and wear is readily >> apparent. As you can see when you examine the critter, the resistance >> increases ( or decreases ) in steps, rather than in a continuous manner. I >> would love to locate a source for these elements, which were manufactured > by >> Bournes, a company that specializes in variable resistors. It is this >> critical component which fails. The rest of this ( rather expensive ) unit >> will last forever. >> Chuck |
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