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Old 22nd September 2012, 12:45 AM   #51
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Some of these as an example will get you the needed higher transformation ratio using just one core.
They may be good candidates providing their capacitance is not to high.

http://www.antekinc.com/pdf/AS-1T250.pdf

http://www.antekinc.com/pdf/AN-64115.pdf

http://www.antekinc.com/pdf/AS-1T200.pdf

http://www.antekinc.com/pdf/AN-4TK360.pdf

http://www.antekinc.com/pdf/AS-1T300.pdf

I think that they have an Isolation transformer with just 4 identical windings on it and if it is a 240v it would be great.

jer
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Old 22nd September 2012, 01:01 AM   #52
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I still think that would be a cheaper way to go.
And still have better performance.
But there are several good candidates from antek that might work and still have a 1:100 transformation ratio, But they are in the $40 to $80 range.
I just compiled a list 3 times and my mouse is acting up and lost it 3 times.

This one for $50 would give you 1:75 or a 1:150 ratio with the 1:75 configuration having a lower frequency capability of at least 240hz and 48v peak input for a 150watt ampilfier range and 480hz at 48v peak for the 1:150 ratio,

http://www.antekinc.com/pdf/AN-4TK360.pdf

jer

P.S. Oh there is my list we are on a new page now !!! :/

Last edited by geraldfryjr; 22nd September 2012 at 01:19 AM.
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Old 22nd September 2012, 01:10 AM   #53
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I just found a thread that was performed on the Antek and another recomendation was the AN1206. I will review you just posted

Thanks,
Doc

Antek Toroidal power transformer for Step-up, Measurements (part 1/2)
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Old 22nd September 2012, 01:18 AM   #54
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So, with a single tranny configuration would the 6.3 v secondaries essentially be excluded?
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Old 22nd September 2012, 01:22 AM   #55
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Included, for the examle above.
As long as the resonate frequency of the transformer with the panel connected is above 20Khz or higher this would work good!!

jer
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Old 22nd September 2012, 01:28 AM   #56
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what do you think of this tranny for a single tranny application

http://www.antekinc.com/pdf/AN-1212.pdf
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Old 22nd September 2012, 01:31 AM   #57
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Here is another example for $50 that has an even higher ratio at 1:100 and 1:200 at the same voltages as described in post #52

http://www.antekinc.com/pdf/AN-4T550.pdf

I believe that this is something that needs to be investigated !!!

Jer
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Old 22nd September 2012, 01:34 AM   #58
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Quote:
Originally Posted by dochungwell View Post
what do you think of this tranny for a single tranny application

http://www.antekinc.com/pdf/AN-1212.pdf
You would have to use twice as many to get the same transformation ratio as the 6v ones.

jer
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Old 22nd September 2012, 01:49 AM   #59
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Yep, I would like to explore the possibility of a custom wound torroidal which would require only needing to use one per channel. oh, and under $50.00 wouldn't be a bad price either.
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Old 23rd September 2012, 02:53 AM   #60
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Spent a couple hours grinding edges round on a stator. First one is slowest, hopefully.
Could save hours of trouble if the metal had a border all around. Anyone ever looked into custom fabrication?
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