----- Original Message -----
Sent: Friday, July 16, 2010 11:03
AM
Subject: LF: Re: Torroids
Hi Chris,
The references 3C85 and 3C90 specify
only the material grade but no the shape and size of the toroid.
We are more familiar with Amidon based
references such as FT-50-43 that specifies a ferrite toroidal ring core, grade
43 and 0.5?x0.281?x0.181? in size.
The 3C90 grade comes from Ferroxcube;
it is a Manganese-zinc
(MnZn) ferrite for applications below 100 KHz appropriate for
high-level drive transformers.
73s.
Juan, M0WWA
----- Original Message -----
Sent: Thursday, July 15, 2010 4:47
PM
Subject: LF: Torroids
Hi again Juan,
Sadly after an exchange of e-mails, that
website you gave me cannot supply the correct type of torroids.
They say I need type 78 (for 3C85 or 3C90 equivalent) and they don't do
them.
I wish they'd all stick to the same format for
identification of the various types.
Thanks for trying!
Chris,
G4AYT.
