Author Topic: Custom u cores anyone?  (Read 20935 times)

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Re: Custom u cores anyone?
« Reply #40 on: January 11, 2012, 16:22:20 pm »
HM:

I've been playing around with 8 330uf capacitors in parallel at the variac rectifier to reduce the 60hz drop out in the waveform.... 

kb

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Re: Custom u cores anyone?
« Reply #41 on: January 11, 2012, 16:30:59 pm »
HM:

ooopppsss, that was my MO transformer strip vic, no go

 this is the ferrite rod and strip vic, primary is single layer iron wire over six single insulated layers of 1000' 28 gauge, the waveform comes from this one

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Re: Custom u cores anyone?
« Reply #42 on: January 12, 2012, 06:19:42 am »
Anyone know any good sources for 29 AWG magneti wire, or M27 electrical Steel sheet?

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Re: Custom u cores anyone?
« Reply #43 on: January 12, 2012, 06:40:33 am »

zapjosh

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Re: Custom u cores anyone?
« Reply #44 on: January 17, 2012, 22:45:45 pm »
Hello,
 
   Is anyone looking for u-cores. I have a place where I can get some. The material is Epcos N95 and the permeability is 3000.

   The coats for a set is going to be $110 without shipping. This is what they went for them.
 
   Josh

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Re: Custom u cores anyone?
« Reply #45 on: January 18, 2012, 02:23:00 am »
Here is some info from National Magnetics Group regarding ferrite plates which could be fabricated by perhaps a water jet or laser.  Unfortunately the minimum order is for 25 @ $30.00 each.  You would need one plate per u-core half to duplicate Meyers core.  Anyone got a better deal?

We do not make a M27 material so I am assuming you’re looking for a MnZn power ferrite.  Is this product our M20 would be the available material, with 2000 initial perm.  I have attached our data sheet.  Our part number made with M20 would be; B-1377-M20.  You have not provided a quantity so I have quoted our minimum order.
 
P/N: B-1377-M20
25 pcs $30.00 ea MOQ
Lead-time: 8-10 weeks
 
Let me know if you need different price breaks or have any questions.
 
Thank you,
Mark Northrup
National Magnetics Group

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Re: Custom u cores anyone?
« Reply #46 on: January 18, 2012, 15:37:07 pm »
I'll take one, now 29 other's here need to order.....

kb

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Re: Custom u cores anyone?
« Reply #47 on: January 18, 2012, 17:36:35 pm »
So the deal is we need two sheets and have to cut them our selves?