I have a Diesel vw jetta that did not come with a tachometer.
However I did aquire a tach. from a gas jetta at the junkyard.
From what I have read the signal provided by the diesel alternator w
terminal is about 25 pulses per revolution while the gas would be
2 pulses per revolution. Ive observed that the gas tach. currently
reads 5800 rpms at Idle.
What can I do to accomplish this? Im thinkin a 4017 chip and maybe a
555 but Im still pretty new to working with these chips so I need some help.
However I did aquire a tach. from a gas jetta at the junkyard.
From what I have read the signal provided by the diesel alternator w
terminal is about 25 pulses per revolution while the gas would be
2 pulses per revolution. Ive observed that the gas tach. currently
reads 5800 rpms at Idle.
What can I do to accomplish this? Im thinkin a 4017 chip and maybe a
555 but Im still pretty new to working with these chips so I need some help.