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> hey EE guys
bd1308
post Nov 30 2005, 12:20 PM
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i have a question to ask, but I have to ask it later in the day....

i just wanted to round up the troops....

dont laugh either.....



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lapuwali
post Nov 30 2005, 04:24 PM
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Yup. The MS tach input circuit has a 200-300V Zener that will shunt any signal that high to ground coming from the - post of the coil. It's true that any diode will eventually hit a breakdown voltage and will conduct "backwards", but a Zener is designed specifically to do this, and the breakdown voltage is consistent. A non-Zener may end up conducting backwards permanently, which will stop you just as fast as if you had your points fail completely.

I'd hardly consider points to be "precious". They're under $3 a set.
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bd1308   hey EE guys   Nov 30 2005, 12:20 PM
bondo   Let's just get this out of the way now... It...   Nov 30 2005, 12:24 PM
Aaron Cox   answers are here: http://www.office-humour.co.uk/i...   Nov 30 2005, 12:44 PM
rhodyguy   why is this in the garage? why is it not labeled O...   Nov 30 2005, 12:55 PM
TonyAKAVW   Check your ground connections -Tony   Nov 30 2005, 12:56 PM
GWN7   Clean the fuse block terminals and check your grou...   Nov 30 2005, 01:01 PM
fiid   I don't think "I'm going to have a topic l...   Nov 30 2005, 01:36 PM
SLKWrx   Is it plugged in? Did you attempt to put it toget...   Nov 30 2005, 01:45 PM
jasons   Its always and I mean always the flux capacitor th...   Nov 30 2005, 02:09 PM
bd1308   okay... i tried to draw you all a pic, but M...   Nov 30 2005, 03:37 PM
TonyAKAVW   Yes. But use a Zener diode, they are made to use ...   Nov 30 2005, 03:52 PM
bondo   Are you talking about inductive kickback? I doub...   Nov 30 2005, 03:53 PM
fiid   The field collapse causes a voltage spike on both ...   Nov 30 2005, 04:00 PM
root     Nov 30 2005, 04:08 PM
bondo   The arcing of points also helps clean them. Slight...   Nov 30 2005, 04:16 PM
root   I want some BOSCH Platnum Points! Wander if an...   Nov 30 2005, 04:20 PM
Dr. Roger   the condensor deletes something called CEMF. count...   Nov 30 2005, 04:23 PM
jsteele22   Hmmm... just thinking out loud here, so don't ...   Nov 30 2005, 04:45 PM
jsteele22   Wow, got a lot of good replies when I was composin...   Nov 30 2005, 04:52 PM
root   By the way Platinum is probably not going to work...   Nov 30 2005, 04:57 PM
bd1308   thanks guys.... Zener diode? um if anything, i w...   Nov 30 2005, 05:10 PM

 

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