Mattia Boscolo Posted August 19, 2012 Report Share Posted August 19, 2012 Hello, I running a Atom on my 4age and would like to use my original tachometer. My question is what in line Pull-up resistor do I need to create the correct signal for the tachometer? My original signal was from the negative side of the coil. Thank you in advance, Matt Quote Link to comment Share on other sites More sharing options...
Mattia Boscolo Posted August 19, 2012 Author Report Share Posted August 19, 2012 Would this work: http://www.linkecu.com/forums/lem/351695799 Quote Link to comment Share on other sites More sharing options...
Simon Posted August 21, 2012 Report Share Posted August 21, 2012 In this case no pull up will work as the tacho is expecting a voltage that is much higher 40+volts You will need to get the tacho modified to suit a low level signal 0-12V Quote Link to comment Share on other sites More sharing options...
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