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Old 7th August 2013, 12:24 PM   #531
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sorry i forgot uploading pics
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Old 7th August 2013, 12:27 PM   #532
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Old 7th August 2013, 01:19 PM   #533
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looks like you have a 1kva torroid there...
you can use this data....Toroidal Core PN# 140 | PN# 140
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Old 7th August 2013, 01:51 PM   #534
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it was from phonic amplifier
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Old 8th August 2013, 07:01 AM   #535
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if you click the link you will see this....
Quote:
Epoxy Coated Toroid, Id=3.500", Od=6.125", Ht=2.125", 2683 VA Relative Power Handling, 0.684 V/turn @60Hz, 15KG
Option: 117V 60Hz Primary, 166 turns of AWG#12 155 C magnet wire. 6" self-lead wire Includes taped primary.
so in India, that will be 332 turns #16 wires,
turns per volt = 1.42

you can use #14 wires for secondaries...
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Old 8th September 2013, 05:22 PM   #536
alvin p is offline alvin p  Philippines
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Sir Tony, could you help me with this transformer that I want to build? I have 1 3/4" deeco core stacked to 3 inches. I am planning to build a 220V primary with 50-0-50 secondary. Could you help me with the turns and size of the wires considering the maximum secondary current that could fit in this core? I would like to maximize the current capacity for the 50-0-50 secondary. Thank you very much.
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Old 13th September 2013, 07:07 PM   #537
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can 220v > 185v 400miliamphere be winded on aa 57mm EI lamination?
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Old 14th September 2013, 12:44 AM   #538
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Quote:
Originally Posted by My Uncle Napoleon View Post
can 220v > 185v 400miliamphere be winded on aa 57mm EI lamination?
what is stack height? looks like a too smalll...
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Old 14th September 2013, 12:48 AM   #539
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Quote:
Originally Posted by alvin p View Post
Sir Tony, could you help me with this transformer that I want to build? I have 1 3/4" deeco core stacked to 3 inches. I am planning to build a 220V primary with 50-0-50 secondary. Could you help me with the turns and size of the wires considering the maximum secondary current that could fit in this core? I would like to maximize the current capacity for the 50-0-50 secondary. Thank you very much.
1.45 turns per volt..
#19 primary
#15 secondary
bobbins are available for this size of coil
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Old 16th September 2013, 01:42 PM   #540
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Thank you sir Tony. I already have a bobbin for this.
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