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Old 12th January 2011, 08:07 PM   #1
tarsik is offline tarsik  United States
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Default Where you buy iron transformer core for DIY audio transformer

Good day to everyone.

Can anybody say where I can buy C-Core for DIY transformer in US. I cannot find it anywhere except some unspecified iron on ebay or from China where I need to order hundred cores at once.

Thank you in advance

Last edited by tarsik; 12th January 2011 at 08:37 PM.
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Old 13th January 2011, 02:31 AM   #2
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Alpha core has them (direct link below.)

C-cores Stock
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Old 13th January 2011, 08:33 AM   #3
Arnulf is offline Arnulf  Europe
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Quote:
Originally Posted by tarsik View Post
Can anybody say where I can buy C-Core for DIY transformer in US. I cannot find it anywhere except some unspecified iron on ebay or from China where I need to order hundred cores at once.
Over here it's a matter of paying one of local transformer winders a visit. They can order all sorts of material (type, size and shape) but in the end it's cheaper to order a complete transformer, wound per specification.

Don't you have transformer winding companies over there ?
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Old 13th January 2011, 02:57 PM   #4
tarsik is offline tarsik  United States
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Quote:
Originally Posted by tarsik View Post
Good day to everyone.

Can anybody say where I can buy C-Core for DIY transformer in US. I cannot find it anywhere except some unspecified iron on ebay or from China where I need to order hundred cores at once.

Thank you in advance
Thank you, Dave. I will give them a try. Some ordering system error today - server error. Will try later in a day.
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Old 14th January 2011, 01:29 AM   #5
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I just call them and order the old fashioned way.

dave
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Old 2nd November 2011, 09:32 AM   #6
marcins is offline marcins  Poland
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So if I can, I too have question about core and bobbin for DIY transformer:-) Where can I buy EI84 core for output transformer and bobbin for this? Or bobbin for C-Core transformer.
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Old 26th December 2011, 05:26 PM   #7
kevinkr is offline kevinkr  United States
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So if I can, I too have question about core and bobbin for DIY transformer:-) Where can I buy EI84 core for output transformer and bobbin for this? Or bobbin for C-Core transformer.
See Alphacore above or perhaps one of several sellers on eBay might have an acceptably performing core.
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Old 27th December 2011, 12:01 AM   #8
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I have a few dozen of SG76(110VA 50Hz) and SG89 cores (220VA 50Hz)
If someone is interrested please mail me at messmer@kolumbus.fi.
No coilformers, no mountingmaterials. Most of the cores are number-matched precision grinded and surface-protected, manufacurer SILICORE (american?), strip is 0.27 or 0.3mm grain orientated. A few nmatched core-halves are good for chokes or OPTs.
If someone has a source for coilformers please let me know.
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Old 27th December 2011, 12:05 AM   #9
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nmatched = unmatched = cheap (porto to EU-countries should be ok but outside migth be xpensive)
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Old 27th December 2011, 12:07 AM   #10
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Join Date: Nov 2006
I have a few dozen of SG76(110VA 50Hz) and SG89 cores (220VA 50Hz)
If someone is interrested please mail me at messmer@kolumbus.fi.
No coilformers, no mountingmaterials. Most of the cores are number-matched precision grinded and surface-protected, manufacurer SILICORE (american?), strip is 0.27 or 0.3mm grain orientated. A few nmatched core-halves are good for chokes or OPTs.
If someone has a source for coilformers please let me know.
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