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 Post subject: Why use a car coil? Why not use a BALLAST???
PostPosted: Sun Jan 11, 2009 4:38 am 
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...and eliminate the filament circuit, just power it same as an IRO
using a car coil? Or is the output voltage high enough... Imhotep?
I bet you already thought of this, :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol:

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 Post subject: Re: Why use a car coil? Why not use a BALLAST???
PostPosted: Sun Jan 11, 2009 11:04 am 
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I have tried this already, I found them not too good. I think it is because of the high resistance and the fact that the coils are almost completely surrounded with iron.

However i am butchering 4 ballasts and rewinding them, to make coils for a larger prototype motor.


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 Post subject: Re: Why use a car coil? Why not use a BALLAST???
PostPosted: Mon Jan 12, 2009 12:38 am 
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mbrownn wrote:
I have tried this already, I found them not too good. I think it is because of the high resistance and the fact that the coils are almost completely surrounded with iron.

However i am butchering 4 ballasts and rewinding them, to make coils for a larger prototype motor.


Here page taking about making coils, Lindsay's Technical Archive: Gingery Buzz Box
http://www.lindsaybks.com/arch/spark/index.html
Don't know if it would help any.


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 Post subject: Re: Why use a car coil? Why not use a BALLAST???
PostPosted: Sun Jan 25, 2009 4:59 pm 
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mbrownn wrote:
I have tried this already, I found them not too good. I think it is because of the high resistance and the fact that the coils are almost completely surrounded with iron.

However i am butchering 4 ballasts and rewinding them, to make coils for a larger prototype motor.



Possibly I could use the ballast after the car coil. The higher resistance is
so it will use less current with the higher input voltage (110V AC)

thanks for the info mbrownn!


Thanks Vortex, for the lindsay link, lots of interesting info there. :idea:

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