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Aussie Pinball Forums => Technical Matters => Pinball Training 101 => Topic started by: DataEast Fan on August 22, 2010, 11:46:46 PM

Title: Understanding coils
Post by: DataEast Fan on August 22, 2010, 11:46:46 PM
Hi Guys

I'd like to replace one of the coils in a Data East machine i have. If I get a Data East one then its simple to change over same for same by part number, but if I was to purchase a different brand I need to under stand how to read the numbers on the coil. !@# The coil I want to change is a 090-5005 Data East number, but looking at a spares web site they list different brands and each brand has its own nmbers.

Does anyone have a link to a web site that explains coil sizing or is someone able to give me a run down of how to do this.

Thanks Mark.

Title: Re: Understanding coils
Post by: beaky on August 23, 2010, 02:41:03 AM
with  williams pinball coils the first number is the gauge of wire used and the second number is the amount of turns, i.e a 23-800 has 23 gauge wire and 800 turns

your coil 090-5005  is equal to a 23-840

the closest coil i can find is a stern 23-840 http://www.marcospecialties.com/product.asp?ic=090-5005-00 (http://www.marcospecialties.com/product.asp?ic=090-5005-00)

here are the specs for the coil
 Wire Gauge: 23
 Number of turns: 840
 Resistance in ohms: 4
Title: Re: Understanding coils
Post by: Steevsee on August 23, 2010, 08:33:17 AM
Does anyone have a link to a web site that explains coil sizing or is someone able to give me a run down of how to do this.

Some good info here.
http://www.pinballmedic.net/coil_chart.html (http://www.pinballmedic.net/coil_chart.html)
Title: Re: Understanding coils
Post by: Pinprick on August 23, 2010, 03:12:10 PM
Thanks for posting Stevesee . . .
Very helpful site & information.
 ^^^
Title: Re: Understanding coils
Post by: DataEast Fan on August 23, 2010, 07:39:21 PM
Does anyone have a link to a web site that explains coil sizing or is someone able to give me a run down of how to do this.

Some good info here.
http://www.pinballmedic.net/coil_chart.html (http://www.pinballmedic.net/coil_chart.html)

Thanks Steevsee this link is just what I was after. $#$

This forum rocks ^^^