On Wed, 5 Nov 2003, Walter Coe wrote: > If that inverter works like I think it does then half the time it throws > a positive spike and the other half of the time it throws a negative > spike. A diode can only shunt negative spikes. That's a good point. Could explain why the problem seems to be lessened with the diode, but not solved completely. (Although that still doesn't explain why the needle is migrating over a long period when the car is off...) > I think that the roll pin is a good idea. But still the gauge shouldn't > jump or bounce. At least that's what I think. True. I know I'd be treating a symptom, but sometimes that's the right thing to do anyway... > If the weight of extra paint on the needle were enough to unbalance it > then the movement would be so sensitive that it would be > bouncing/vibrating at every bump in the road. ...unless it's in the presence of a magnetic field holding it in place. It could be a very sensitive movement that's held in place strongly enough by the coil not to move, but which, once the coil loses power, spins very easily. I never really noticed how easily it moves in the absence of power. On Mon, 3 Nov 2003, timnagin wrote: > Does your VOM have a max hold? Yeah, it does. Pretty decent resolution, too (250 uS). It's not seeing anything out of the ordinary. -andrew Yahoo! Groups Sponsor ADVERTISEMENT <http://rd.yahoo.com/M=267637.4116732.5333197.1261774/D=egroupweb/S=170512 6215:HM/A=1754452/R=0/SIG=11tpoan5t/*http://www.netflix.com/Default?mqso=6 0178324&partid=4116732> click here <http://us.adserver.yahoo.com/l?M=267637.4116732.5333197.1261774/D=egroupm ail/S=:HM/A=1754452/rand=874595856> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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