[sdiy] power transformer pointer ?

[patchell]

Mountain Man wrote:

> Ohhhhhh  :(   That's disappointing.  I do hope I can find a replacement
> transformer, I'd hate to have to ditch my Xpander because of lack of that
> single part  :)    The specs of the transformer appear from the schematic and
> manual as follows:  single primary winding that takes 13V at 30 Khz.  The
> secondary is tapped, rectified and filtered to produce 2 +55V outputs, + and
> - 12V, +5V (-5V is a feed off the -12V), 2 grounds, and 2 9VAC outputs, a
> total of 9 outputs from the secondary.  Any idea of where to look for
> something like this?   ANY pointers, no matter how vague, are welcome at this
> point.
>

    The 30KHz part makes it sound like a transformer in a swticher!? (I didn't
notice that in the original post).  This and the voltages make it sound like you
are not going to find a replacement.  Transformers for switcheres are generally
not off the shelf.

    Not being familiar with this peice of equipment, and not having first hand
knowledge of the power supply requirements, I personally cannot offer any more
suggestions. :-(

>
> Thanks,
> Elby
>
> patchell wrote:
>
> >     A lot of time, power transformers in comercial equipment are custom
> > made.  Even if you locate the manufacturer, you more than likely won't be
> > able to get one.  Your best bet is to find out what the old one did
> > (voltages, etc), and find something as close as posible.  12 pins doesn't
> > sound good.  It probably has two secondaries, with center taps, and two
> > primaries, with 0-100-120 taps.  If this is the case, your chances of
> > finding something are greatly reduced.  I don't know why, but those kinds
> > of primaries are difficult to find on off the shelf transformers (not
> > imposible, just difficult).  Sorry to sound so pesimistic, but finding
> > just the right transformer is always such a pain.
> >
> > Mountain Man wrote:
> >
> > > I need to replace a power transformer in my Xpander.  The transformer
> > > has 12 pins, and written on it are the numbers "661023"  and  "51420".
> > > The service manual says: "power xfmr 30 Khz 8103-TI incon"   I did a
> > > search for "incon" and located a company called "Intelligent controls"
> > > that makes power reliability equipment - but don't appear to mfg
> > > transformers.  None of the electronics places I tried (Mouser, Allied,
> > > Newark, Digikey) have Incon in their manufacturer lists.  Can anyone
> > > give me a pointer on where to locate this part?
> > >
> > > Thanks,
> > > Elby
> >
> > --
> >  -Jim
> > ------------------------------------------------
> > * Visit:http://www.silcom.com/~patchell/
> > *-----------------------------------------------
> > *I'm sure glad Merry Christmas comes just once a year
> > * -Yogi Yorgensen
> > ------------------------------------------------

--
 -Jim
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* Visit:http://www.silcom.com/~patchell/
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*I'm sure glad Merry Christmas comes just once a year
* -Yogi Yorgensen
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