From: Bob Blick <bobblick@outlook.com>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
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Date: Mon, 13 Jul 2020 13:17:17 -0700
Subject: Re: [EE] Microwave Oven Transformers
Thread-Topic: [EE] Microwave Oven Transformers
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Yes, that's why I thought it might be relatively easy, assuming everything =
didn't fall apart when I cut through the welds. This guy seems to have achi=
eved it:
https://www.youtube.com/watch?v=3DrCqddXhoP4E
Cheerful regards, Bob

________________________________________
From: piclist-bounces@mit.edu <piclist-bounces@mit.edu> on behalf of Alan P=
earce=20
Sent: Monday, July 13, 2020 12:51 PM
To: Microcontroller discussion list - Public.
Subject: Re: [EE] Microwave Oven Transformers

I would have thought that a DC choke would not want the E and I
laminations interleaved, rather an air gap to limit saturation of the
core.

On Mon, 13 Jul 2020 at 18:39, Denny Esterline  wrote:
>
> Personally, no. But the internet is full of people that have taken out th=
e
> secondary windings and wound on 2-3 turns of heavy wire to produce a spot
> welder.
> Google around a bit on DIY spot welder and I'm sure you find lots of peop=
le
> hacking up these transformers in interesting ways. Probably something
> relevant to be learned there.
>
>
> -Denny
>
> On Mon, Jul 13, 2020 at 9:23 AM Bob Blick  wrote:
>
> > I am in need of a large DC choke and thinking about making one from a
> > microwave oven transformer. It appears that the E's and I's of the core=
 are
> > not interleaved so all I need to do is cut the weld holding the core
> > together and it should fall apart. Hopefully in just two pieces. Then I=
 can
> > strip out the windings, put my own winding on, and, most importantly,
> > sandwich a spacer so I have a gap (I said this was a DC choke).
> >
> > Anyone here ever play with microwave oven transformers at this level an=
d
> > learned any hard lessons?
> >
> > Thanks, Bob

--=20
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