Curious. Their (Pertronix) web site says: "• Rotating cobalt magnets trigger a Hall Effect integrated circuit . ...no points to burn, ...no moving parts to wear out." and Wiki says : "The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current. It was discovered by Edwin Hall in 1879.[1] The Hall coefficient is defined as the ratio of the induced electric field to the product of the current density and the applied magnetic field. It is a characteristic of the material from which the conductor is made, since its value depends on the type, number, and properties of the charge carriers that constitute the current." Could you please explaing to inquiring minds as to why you don't consider it to be a Hall effect system? I am not disagreeting with you, just like to know. (I am a fan of Pertronix). I have always thought it was just another means of opening and closing contact points and the engine doesn't really care where the voltage is coming from, just when and how much. How much is ultimately limited by the air gap at the plugs, among other things Best, Mike Moore 300H (without Pertronix ignition) On Aug 11, 2013, at 7:06 PM, RICK AND DEBBIE CLAPHAM <rixpac@xxxxxxx> wrote: I do not consider the Pertronix Ignition a hall effect system. I Know I have had problems with their system in Chrysler big blocks B and RB as well a few local MoPar club members. Unfortunately I end up helping the stranded members and have even used My AAA membership to have their vehicles towed to where repairs could be finished. No problems in early Hemi and A and LA series at this time. Years ago I attended a spark plug seminar and AC bragged about their porcelain and sealing system, later in the program the Champion representative announced they produced AC's Porcelains. Use what plug works for you! If you have a trailer queen or museum piece it really does not matter what ignition system or plugs you use. I have used all brands of sparkplugs and have had problems with all manufactures. the least problems are with Champion, Autolite, Motocraft and AC. All the others I no longer use. To: chrysler300@xxxxxxxxxxxxxxx; r41hp@xxxxxxxxx From: jwkco@xxxxxxxxx Date: Sun, 11 Aug 2013 10:45:19 -0700 Subject: Re: [Chrysler300] 300-F Plug reccomendations I have a Pertronix (Hall Effect) electronic ignition installed in a stock distributor and run Autolite # 847's with it, gapped @ .060" with excellent results. John Kuegel, 300F Sent from Yahoo! Mail on Android [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/