GaryB

I've have finally received the flat ferrite plates from National Magnetics in both 1600 and 2000 permability.  Since most of the folks who had said they would purchase these plates have flaked out and decided not to honor their commitments I've have some plates available.  Contact me by PM if interested. 

Minde,

Check your messages.

Garyb

Unlimited, check your messages. 

Garyb

I'll be placing an order for 26 ferrite plates through National Magnetics Group within 5 days.  They measure 3.87" x 3.87" x .118" and are available with permeability ratings of M20 (2000) and N16 (1600).  Several members have expressed interest and placed requests.  If anyone is interested in obtaining some of these for your cores please send me a private message.  There are links to National Magnetics on this discussion for more info.

Here is the M20 PDF from National Magnetics Group regarding the ferrite plates.  Is the 2000 permeability the correct choice?  I'll place the order if I can be assured at least 20 plates will be going to a home other than mine. 

Yes, the ferrite plates are 3.87" x 3.87" x .118".  One plate should be sufficient to make one u-core (2 required for the VIC coil).  I have not investigated the possibility of cutting with a water jet or laser yet but I don't see any reason why either could not be used to turn the plates into u-cores.  The 8-10 week lead time slows the process down.  If anyone knows of someone who actually stocks something similar on a shelf ready to sell that would be a plus.

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

This is my first post and I'd just like to say I've learned more on this site in the last 6 months than any other site in the last 5 years.  Thanks!
I believe I may have found a source for ferrite u cores.  Magneticsgroup.com offer ferrite plates which I believe could be shaped with a laser cutting machine commonly found at steel fabricators.  They offer one size, p/n B-1377 which is 3.87" x 3.87" x .118" which should be sufficient for one u core.  Here's the link if anyone is interested.

http://www.magneticsgroup.com/f_other.htm