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The site is up now. Here ya go: http://www.national.com/pf/LM/LM2907.html Shad > Hello- > > I don't know how you are with electronics, but you can make a little devise > to work with a digital multimeter for a tach. Go to national > semiconductor's homepage at www.nsc.com and search for tachometer or pulse > frequency counter or something like that... I've checked it out before and > would do it again, except for that when I just checked their site is down > :-(. Once it's up and if you don't mind a bit of soldering, I can make up a > little schematic for you if you like... > > Take care, > Shad > > > > Hello, > > > > Does anyone know if it's possible to use a digital multimeter as an engine > rpm indicator? I don't need a value in rpm, I just need a comparative > indicator i.e. engine setting A has higher rpm than setting B. Could I > measure current flowing through the points? Does this change with rpm? Part > of me says it does, but the other part keeps shouting 'how?' > > > > This is for setting the idle mixture on a pair of aftermarket carburettors > in my 71 squareback. The tacho I have does not have the resolution for such > measurements. > > > > Many thanks, > > > > Gary Miller > > Essex > > UK > > > > ------------------------------------------------------------------- > > Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe > > > > > >