Mech is kinda correct. The sensing is done by an - Saab 9000 Bulletin Board - Saabnet.com
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Mech is kinda correct. The sensing is done by an
Posted by Lu [Email] (more from Lu) on Thu, 27 Nov 2003 06:35:33
In Reply to: Re: SID is showing that rear malfunction still exists?, MikeH98, Wed, 26 Nov 2003 16:06:36
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Op Amp (operational amplifier) looking at the voltage developed across an exact resistor which develops a little voltage from the current traveling thru it to it's attached lamp. Take two lamps and compare them with the op amp set up to turn on if there is a difference in the two. Really just a current comaparator. The old ones were relays where the current going to the coil of the doulbe coiled relay would have equal pull on the flapper but if one lamp opened it's filament the one sided pull would kick the contactor over. Didn't work in the field very well.
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