cheaping it out on 20:1 attenuator or secondary ign pickup?

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hillp
OneWave
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cheaping it out on 20:1 attenuator or secondary ign pickup?

Post by hillp » Wed Feb 23, 2005 8:41 pm

Isn't the 20:1 attenuator simply a voltage divider, that I suspect I could build with resistors for just a few bucks? And how about the secondary ignition pickup? Could I just use the spark plug cable clamp used to measure rpm on my automotive multimeter?

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Autonerdz
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Post by Autonerdz » Thu Feb 24, 2005 5:03 pm

I'm not sure what it would take to make a 20:1 Attenuator, but I do know the ones Pico have work really well. They are accurate and distortion free.

As for the secondary pickups, these are capacitive 10,000/1 attenuated leads that produce a really nice response. An RPM pickup for your DVOM is an inductive clamp and would not show you the same thing at all. Very useful though for syncing a parade pattern using the external trigger 8)
Tom Roberts
(The Picotologist)
Autonerdz

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