Old transformators...

Skorpio · 3rd January 2009, 09:57 AM

Hi

I have a old amp and I would like to reuse the output transformators for a new project.

The first problem is that the are coveres in dust and dirt, and it is not easy to remove. The second is that two of the old screws going through the iron core for mounting are stuck....

Is is possible to clean the trafos in something without damage them?

And what is the best way to remove screws? Could some WD40 used for screws in cars be usefull?

Trout · 3rd January 2009, 12:00 PM

Quote:

Originally posted by Skorpio
Hi

I have a old amp and I would like to reuse the output transformators for a new project.

The first problem is that the are coveres in dust and dirt, and it is not easy to remove. The second is that two of the old screws going through the iron core for mounting are stuck....

Is is possible to clean the trafos in something without damage them?

And what is the best way to remove screws? Could some WD40 used for screws in cars be usefull?

I would avoid using anything with solvents like wd40.

To get the screws out I would cut them off on the chassis side with a dremel moto-tool and a cut-off wheel.

Then once it is off the chassis, you can usually get the remaining screw out by lightly taping it with a small punch or even a small screw or nail.

Skorpio · 3rd January 2009, 12:16 PM

They are off the chassis and only on transformator.

Light tapping or even harder does not do the job....

Bandersnatch · 4th January 2009, 11:50 AM

Quote:

Originally posted by Skorpio
They are off the chassis and only on transformator.

Light tapping or even harder does not do the job....

I would not hit the TX too hard. That same cut-off wheel can take the heads( or nuts ) off the screws that hold the stack together.
cheers,
Douglas

Skorpio · 4th January 2009, 01:57 PM

The question is then, what to try next?

Evenharmonics · 4th January 2009, 02:13 PM

If one screw head is cut off, try grabbing the other end of screw with a wrench and gently twist (unscrew) it. See if that does anything.

It may help if you can post a picture.

3rd January 2009, 09:57 AM	#1
Skorpio diyAudio Member Join Date: Mar 2004 Location: Denmark	Old transformators... Hi I have a old amp and I would like to reuse the output transformators for a new project. The first problem is that the are coveres in dust and dirt, and it is not easy to remove. The second is that two of the old screws going through the iron core for mounting are stuck.... Is is possible to clean the trafos in something without damage them? And what is the best way to remove screws? Could some WD40 used for screws in cars be usefull?

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3rd January 2009, 12:16 PM	#3
Skorpio diyAudio Member Join Date: Mar 2004 Location: Denmark	They are off the chassis and only on transformator. Light tapping or even harder does not do the job....

4th January 2009, 01:57 PM	#5
Skorpio diyAudio Member Join Date: Mar 2004 Location: Denmark	The question is then, what to try next?

4th January 2009, 02:13 PM	#6
Evenharmonics diyAudio Member Join Date: Apr 2007	If one screw head is cut off, try grabbing the other end of screw with a wrench and gently twist (unscrew) it. See if that does anything. It may help if you can post a picture.