Belclere mains transformer data?

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Belclere mains transformer data? soundgeek 05-31-2008
Posted by soundgeek on May 31, 2008, 4:59 pm
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Anyone know where I might get a datasheet for a Belclere toroidal
transformer stamped TR7401? It was in a Datel Unicase 4001X box
(modem?)

Thanks in advance :-)


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Posted by Bob Minchin on May 31, 2008, 5:47 pm
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 soundgeek wrote:
> Anyone know where I might get a datasheet for a Belclere toroidal
> transformer stamped TR7401? It was in a Datel Unicase 4001X box
> (modem?)
>
> Thanks in advance :-)
>
>
I reckon this part is highly unlikely to be a standard part and hence
have a data sheet. Almost certainly a custom part specified by Datel.
Can't you just measure it? Voltage is easy and the max current is likely
to be when the voltage drops by 10% from the open circuit output.

Bob

Posted by soundgeek on June 8, 2008, 10:09 am
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>
> I reckon this part is highly unlikely to be a standard part and hence
> have a data sheet. Almost certainly a custom part specified by Datel.
> Can't you just measure it? Voltage is easy and the max current is
> likely
> to be when the voltage drops by 10% from the open circuit output.
>
> Bob

I admit it was a long shot! I'm not familiar with these transformers.

You suggest a good "engineering" approach!

Thanks for this.


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Posted by 1501 on June 1, 2008, 2:43 am
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> Anyone know where I might get a datasheet for a Belclere toroidal
> transformer stamped TR7401? =A0It was in a Datel Unicase 4001X box
> (modem?)
>
> Thanks in advance :-)
>
> --
> soundgeek
> ------------------------------------------------------------------------
> soundgeek's Profile:http://www.rcgroups.com/forums/member.php?u=3D212948
> View this thread:http://www.rcgroups.com/forums/showthread.php?t=3D872699

I'm 99% certain these were custom built for BT.

Posted by soundgeek on June 8, 2008, 10:12 am
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>
>
> I'm 99% certain these were custom built for BT.

Sounds likely. I recall someone here used to work for the company, so
I was looking for inside information.

Thanks for your reply.


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