DIY Inductors-please help

[kpeek]

I have a couple of questions about DIY inductors:

I read a much as possible in previous posts but have these specific questions.

I found the Fair-rite site and they list Mouser and Allied as distributors. However I searched bith catalogs and could not find just the toroid blanks.

What is the best way to order the toroids like CJ's Pultec?

Once I have them, is there a tutorial for winding toroidal inductors?

Thanks and sorry if these have been answered before.

KP

 

[alk509]

I got some toroid cores from some place... I'll post back.

Peace,
Al.

 

[alk509]

OK:

http://www.cmi-ferrite.com/

Peace,
Al.

 

[CJ]

Here is a cut sheet from the Fair-rite cat.
I used the 77 material and had good results as it keeps the turns low=good Q =easy to wind. The bigger the core, the easier to wind.

Tweco (?) in a 1 inch OD was probably stock for the orig. Pultec.

Those are the "A" numbers in the far-rite column.:razz:

Ask for a sample directly from the company.

 

[NewYorkDave]

Hey, I used to drive past the Fair-Rite factory every day on my way to work. That was three or four jobs ago..

 

[CJ]

Why didn't you snag some samples?