Shop with confidence. ARCELI 1460 Pieces Resistor Kit 73 Values 1%, 1 Ohm 1 M Ohm 1/4 W Metal Film Resistors Assortment for DIY and Experiments $13.99 Only 13 left in stock - order soon. Peak current 3.7 A. Product Line : Balkamp. If you use the coil with the external resistor just make sure you have an external resistor. The Flame Thrower 40,000V coils have internal resistance rated at 1.5 or 3.0 ohms. This Video explains how the Ballast Resistor Works.For additional How-to Tutorials Visit our Website: http://www.howstuffinmycarworks.com If the tractor is equipped with a magneto, the basic ignition system itself will be unaffected by the change from 6 to 12 volts. If it's powered through a ballast resistor or resistor wire in it's stock form, then continue to use such ballast. The external resistor coil most likely has 1.5 ohms resistance, so you need a 1.5 ohm external resistor to have 3.0 ohms. Description #B4008-006, Ballast Resistor for Ignition Coils . Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. The ballast resistor has a resistance of 1.6 ohm. The resistor wire between the ignition circuit and the coil fried so I am replacin it with a ballast resitor to drop the voltage fro 12V to 9V so I don't burn up the coil. The coil for a ballast ignition system will have a primary winding resistance between 1 and 2 ohms. A set of points would die in about a day with that much current. That is what I bought but it only drops the voltage maybe half a volt. That's with a 1.5 ohm ballast resistor and a 1.5 ohm coil. Secondary resistance - 8 - 10,000 ohms. As Rob says, surprising an unballasted 1.5ohm coil hasn't cooked but maybe you haven't been on any long journeys. These Summit® ballast resistors are perfect for protecting your points-style ignition system. Ballast Resistor in Fluorescent Lamp But check and double-check. Our Ballast Resistor is designed to be used in conjunction with our available External Resisted Ignitions Coils. Secondary turns - 24500. Multi-meter Ohm Setting. It isn't, however, just that simple. The ballast resistor, supplies the needed voltage during the start up, and then immediately after the arc is established, it reduces the voltage in addition to regulating the current flow. The figure below shows a florescent light tube connected with a ballast resistor and a starting switch. Tech Question Erik Bakko, Brooklyn, NY, 72 Dodge Swinger 318ciDear Mr. Mopar Guru,My ballast resistors have an expected life span of 3 months in my Dart. Part Number: RRA-18-5450 Not Yet Reviewed I am in the process of installing a points distributor system in my model T (SBC). Why? A ballast is a kind of resistor who resist the current in the electrical circuit. The alt wire is only 12 gauge, will change this to 8 or 10 gauge for permanent use. By the formula I found (Ohms x 2= volt drop) a 1.25 Ohm resistor would work. Find great deals on eBay for ballast resistor and lucas ballast resistor. The 6v coil is 2 ohms and draws 3 amps on 6 volts. The resistor being internal or external does not matter. My ballast resistor is 2.0 ohms and I have a .9 ohm coil. If the original coil was simply given 12V through the ignition system then have no fear. So you should go with OEM voltage delivery. The 1.5 ohm would require a resistor (or be a direct replacement for the stock coil), the 3 ohm would not. A ballast resistor is a resistor inserted into a circuit to compensate for different changes. I'm not sure what this littlegem does exactl IF you are using the Mopar electronic conversion ignition system ("Orange box") the ballast resistor is 0.8 ohms. We apologize that this item is not available for pickup in … it depends on which coil is used. Without a ballast, ... 3. Output 29.1 kV @ 100Hz. I've blown up two of these, one from not having a matched coil and ballast resistor (the total series resistance from the input of the ballast resistor to coil terminal 1 MUST NOT BE LESS THAN 3 OHMS OR IT IS LIKELY TO COOK THE PERTRONIX), and second one from just being a dope. --Rob 4. A Pertronix II or III is a different story. From United Kingdom; The solution to this problem was the ballast which reduces the voltage down to the 6-9 volts the 1.5 ohm coil prefers. For what it's worth, I have been using a ballast resistor on my CD175 for a few years now with no problems at all. The coil is from an early 50s Ford 2 ton it tested at 1.8 to 2 Ohms, the high tension wires are used, the ballast resistor was used on this engine, prior to its being parked for 6 years. A “standard” coil will have an internal resistance close to 3 ohms on its primary windings. The external ballast resistor (or resistor wire) will provide an additional 1.5 ohms of resistance. That's my $.02 Find Summit Racing SUM-G5218 Summit Racing® Ballast Resistors and get Free Shipping on Orders Over $99 at Summit Racing! Can I remove the ballast resistor and run a 3 ohm coil? Part # : BK S43243. When voltage is tested, coil negative connected to gound and key turned to on, there is … Ballast Resistor. What I am wondering is if the 1.6 ohm coil will have sufficient output for normal running with reduced voltage supplied to the primary due to the 3 ohm resistor? Its also surprising that the Ignitor worked satisfactorily … Iput 4000 miles on the clock in the last year. To test your ballast resistor you need an ohm meter or multimeter set to ohms as previously suggested but you really need to remove the connectors from both sides of the resistor. Shop ... Classic Car Ignition Coil 16 Ohm Ballast Resistor, 134176A, GT6, GT7, TR6, Stag. But for a Pertronix I using a 1.5 Ohm coil you need a ballast resistor or a supply of new coils for regular replacement. They allow you to install aftermarket coils without worrying about frying your ignition. Our Ballast Resistor is designed to be used in conjunction with our available External Resisted Ignitions Coils.External Resisted Ignition Coils have an internal resistance of 1.5 Ohms and when combined with the Ballast Resistor you get a total resistance of 3.0 Ohms which is necessary for 12 Volt ignitions systems. Ballast Resistors, Marine Coil Resistors, 1.50 ohms Resistance, Each. About the Product. In order to maximize the coil's output during starting, ballasted ignitions have a ballast bypass which sends 12 volts directly to the coil during startup. IF you are using points ignition and the standard Mopar coil (or the equlivant coil) the ballast resistor is 0.5 ohms. I fitted a small relay from the junk box with its coil in parallel with the starter relay coil. You should be getting 9 … If your multi-meter has different ohm settings, then put it on the “X1k” position. 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