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Tachometer circuit-need help

BCISam

Mar 29, 2013
5
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Mar 29, 2013
Messages
5
Can't find any info on tractor tach ckt using 8 pin SN29736P1. Replaced ic checked every component. New unit costs $1000.00 Alternative is make new pbc using LM2907 but will it drive a 50Ma speed MTR??
 

john monks

Mar 9, 2012
693
Joined
Mar 9, 2012
Messages
693
Do you have the make and model of the tractor?
According to the datasheet the LM2907 will drive a load up to 50mA.
 

BCISam

Mar 29, 2013
5
Joined
Mar 29, 2013
Messages
5
Thanks for response; Tractor is a John Deere 2750, Tach assy is JD Part # AL35166. Tryed all sites I know for data sheet on SN29736P1 don't even know pin out or block diagram. Have traced out the ckt & have componet values.
 
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