[AT] grounded coil

[Chris Britton]

Larry.. don't take this follow comment the wrong way.. but do you have any 
electronics background?  Draw out a simple ignition circuit design... your 
'coil' circuit will have 3 connections.. 2 for the primary and a 3rd for the 
secondary.

Your primary needs power and ground.  Since the points are mounted in the 
distribuitor.. the points are ground.  that just leaves power.. and then the 
secondary line to the plug(s)

About the only thing I can come up with is some older style system that 
might possibly use an impulse pickup and or an old coil box.. not anything 
more modern.. say.. from 1939 and up.

Be specific.. if you've got some circuit schematics.. or can cite an example 
of a modern points based ignition system that uses a coil that is grounded 
.. IE.. the coil container is ground.. and is an integral part of the 
system... post them.  There are at least a couple of us here that wouldn't 
mind seeing them.

I'm envisioning you would need isolation at the points ( from the 
distribuitor, or from the distribuitor from the block? ) to have them 
function as anything other than grounding breaker contacts.

Also.. lets narrow the scope of this down.  I'm also assuming a round can 
coil or similar application that has 2 primary wires and a secondary high 
tension tower.. etc...  Ans is an external unit.. not an integral part of a 
complete unit.. like in a magneto.. etc.  As we are talking about mounting 
it to an engine.. etc..

( again.. this is not meant to be inflamitory.. or antagonistic.. just 
asking you what you are basing your claims on... we've shown our cards.. now 
it time to call.. )

Soundguy

>From: "Larry D Goss" <rlgoss at evansville.net>
>Subject: Re: [AT] grounded coil
>Well, I don't want to get into a rock throwing contest.  Marshall Brain is 
>a
>nice guy and we're both members of the same club sponsored by NCSU
>(literally), but everything that appears in his website is not universal. 
>I
>still stand by my statement that some ignition coils HAVE to be grounded to
>operate.  Just because you haven't come across any, doesn't mean they don't
>exist or even that they're rare.

>Larry