<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1430734736218_7912" dir="ltr">I'm finishing on the restoration of my Bugeye with modifications. It has a 1275 cc engine, negative ground system with a new alternator and Crane ignition (XR700). The coil is stamped <span style="font-family: Verdana; font-size: 12px;" class="" id="yui_3_16_0_1_1430734736218_8156">BYS 11P12 - apparently a Lucas DLB101equivalent. The resistance across the +/- terminals of the coil with no connections is about 3.4 ohms. The circuit is at present without any ballast resistor. I'm trying to figure out whether I need to add a ballast resistor. I've read somewhere that for a coil with this low a resistance, the running voltage will be excessive (to what?). I see no ballasts in spridget wiring diagrams before about 1975.</span></div><div id="yui_3_16_0_1_1430734736218_7912" dir="ltr"><span style="font-family: Verdana; font-size: 12px;" class=""><br></span></div><div id="yui_3_16_0_1_1430734736218_7912" dir="ltr"><span style="font-family: Verdana; font-size: 12px;" class="" id="yui_3_16_0_1_1430734736218_8231">Any advice/insight would be very much appreciated.</span></div><div id="yui_3_16_0_1_1430734736218_7912" dir="ltr"><span style="font-family: Verdana; font-size: 12px;" class=""><br></span></div><div id="yui_3_16_0_1_1430734736218_7912" dir="ltr"><span style="font-family: Verdana; font-size: 12px;" class="" id="yui_3_16_0_1_1430734736218_8246">Walt - (nearly ready for first light & smoke)</span></div><div id="yui_3_16_0_1_1430734736218_7912" dir="ltr" class="" style=""> </div></div></body></html>