Jim is right. When the points open , the field collapses which produces a wattage in the coil primary which tries to arc at the points. The condenser absorbs that charge to keep the points from burning. The voltage coming out of the coil is many times what is going in to it. This voltage in the primary acually bounces back and forth between the condenser and coil. What we see is a spark, but it is many , many sparks so close together that it looks like only one. They say it makes the coil ring. The spark is coming from the secondary windings which are picking it up from the moving field. Clear as mud?
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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