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Re: Re: [OM] Noisy T32

Subject: Re: Re: [OM] Noisy T32
From: "C.H.Ling-Accura" <chling@xxxxxxxxxxxxx>
Date: Fri, 17 Oct 2003 17:39:18 +0800
Having seen a lots of suggestions here, I believe all are just "talk" and
don't expect the originator put it into trial :-) I just happen to work on
this field and know a little about the potting compound needed but it is not
a consumer stuff and I think you cannot get it easily.

You can found a proper varnish for the transformer for T32 below:

http://www.dolphs.com/

We use one that need baking but since we have no idea on the temp capability
of the transformer in T32, it is better to select an air-dry one.

C.H.Ling

> -----Original Message-----
>
> The way I read this, you have no knowledge of electronics but
> you're proposing an experiment on a T32's high voltage circuit
> with unproven, possibly damaging techniques.  I've heard of using
> shellac on windings but not school glue.  What happens when you
> cycle the T32 a few times and the school glue reaches 150 F?  I
> know the stuff is not flammable but there's no reason to assume
> that Elmer's glue has been designed to withstand temperature
> cycling inside a transformer, right?  I think white glue is
> mostly gelatin and water.   My guess, having taken only one
> semester of materials engineering and 2 semesters of college
> chem, is that it would breakdown under heat, the water would come
> out of suspension, and run all over the inside of the flash, a
> gluey sludge.  If the foot has a crack, it might run into the
> shoe socket, into the pentaprism area of a 1 or 2 before the
> owner notices it.  If you don't have expertise on a technical
> topic, why would you propose a technical solution, t!
> hen ask if it makes sense, technically speaking?  Am I missing something?
>
> All the best,
> Lama
>
>
> > ----- Original Message -----
> > Or just for fun, you might try this experiment (I've been
> thinking of trying
> > it,
> > but noisy transformers are getting pretty rare....) -- thin some white
> > school
> > glue a bit and squirt it into the windings under the tape and
> let it dry.  I
> > wouldn't use a solvent-based glue since it might dissolve the
> insulation of
> > the
> > windings -- OK, electrical-types, is that a valid concern/suggestion?


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