Toroid transformer cover?

Evenharmonics · 29th July 2009, 04:24 AM

Anyone know where I can buy toroid transformer covers? It's the one that looks like metal can.

Thanks.

boywonder · 29th July 2009, 04:48 AM

I have no idea what they cost but they have std sizes listed...

http://www.deepdrawnenclosures.com/s...und_cases.html

another:

http://hudson.thomasnet.com/viewitem...und?&forward=1

rcavictim · 29th July 2009, 04:49 AM

Try dollar stores in the pots and pans section. You can find some very attractive covers in those stores. I found some stainless drawn drinking mugs that work nicely as covers for some toroids I have after removing the handles.

Enzo · 29th July 2009, 04:58 AM

Be careful not to complete a circuit with the metal parts. For example in a standard flat rack chassis, if you mount a toroid on the floor panel, and run a steel bolt through the center, if that steel bolt contacts the top panel, it completes a "turn" through the toroid. A SHORTED turn.

So one would use a nylon mounting bolt or make sure a steel bolt doesn;t contact the top panel. If you use a metal cover, take the same precautions. Either the cover must have an insulator between the floor and the cover, or the mounting screw through the center must be plastic, or insulated with plastic shoulder washers, or embed a nut in epoxy in the center hole, or something. Whatever method you use, you cannot make a complete metal path through the center and back to the other end

richwalters · 29th July 2009, 04:33 PM

rcavictim has the perfect answer:
This small saucepan in pic nicely fits over the toroid. Cut it neatly with a disk or patience with a hacksaw.

richy

Matt.B.H. · 30th July 2009, 01:24 AM

I found a couple of stainless kitchen things in the local supermarket. I guess I looked a bit weird walking about with a vernier in my hand but hey who cares.
I cut them down, not easy and made a spot welder to weld on some studs.
Cheers Matt.

DynacoDave · 30th July 2009, 01:30 AM

I like tuna cans.

Geek · 30th July 2009, 02:41 AM

Lots of beautiful stainless things can be had inexpensively from east Indian stores

Wavebourn · 30th July 2009, 02:58 AM

I don't know about east Indean stores, but we have Ross Dress for Less here. One time commercial tube amps looked all the same like they were made with pots bought in Ross.

Ronmeister · 30th July 2009, 03:19 AM

PVC pipes cut to size work very well for lots of reasons such as the different dimensions (if you're using different size transformers), available covers etc.. Some need some sanding before you paint them.

Just a thought... Good luck!

29th July 2009, 04:24 AM	#1
Evenharmonics diyAudio Member Join Date: Apr 2007	Toroid transformer cover? Anyone know where I can buy toroid transformer covers? It's the one that looks like metal can. Thanks.

29th July 2009, 04:49 AM	#3
rcavictim diyAudio Member Join Date: Jun 2004 Location: Cool end of a soldering iron NW of Toronto	Try dollar stores in the pots and pans section. You can find some very attractive covers in those stores. I found some stainless drawn drinking mugs that work nicely as covers for some toroids I have after removing the handles. __________________ I.Q.Test. Have you ever purchased a recreational snowmobile?

30th July 2009, 02:58 AM	#9
Wavebourn diyAudio Member Join Date: Sep 2006 Location: Pleasant Hill, CA	I don't know about east Indean stores, but we have Ross Dress for Less here. One time commercial tube amps looked all the same like they were made with pots bought in Ross. __________________ The devil is not so terrible as his mathematical model! Wavebourn: We Create Creativity!

30th July 2009, 03:19 AM	#10
Ronmeister diyAudio Member Join Date: Apr 2007 Location: At Sea...	PVC pipes cut to size work very well for lots of reasons such as the different dimensions (if you're using different size transformers), available covers etc.. Some need some sanding before you paint them. Just a thought... Good luck! __________________ Ronmeister - "it takes years..."

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29th July 2009, 04:48 AM	#2
boywonder diyAudio Member Join Date: Jan 2008 Location: So.Cal.	I have no idea what they cost but they have std sizes listed... http://www.deepdrawnenclosures.com/s...und_cases.html another: http://hudson.thomasnet.com/viewitem...und?&forward=1

29th July 2009, 04:58 AM	#4
Enzo diyAudio Member Join Date: Sep 2004 Location: Lansing, Michigan	Be careful not to complete a circuit with the metal parts. For example in a standard flat rack chassis, if you mount a toroid on the floor panel, and run a steel bolt through the center, if that steel bolt contacts the top panel, it completes a "turn" through the toroid. A SHORTED turn. So one would use a nylon mounting bolt or make sure a steel bolt doesn;t contact the top panel. If you use a metal cover, take the same precautions. Either the cover must have an insulator between the floor and the cover, or the mounting screw through the center must be plastic, or insulated with plastic shoulder washers, or embed a nut in epoxy in the center hole, or something. Whatever method you use, you cannot make a complete metal path through the center and back to the other end

30th July 2009, 01:24 AM	#6
Matt.B.H. diyAudio Member Join Date: Jul 2009 Location: Cheltenham	I found a couple of stainless kitchen things in the local supermarket. I guess I looked a bit weird walking about with a vernier in my hand but hey who cares. I cut them down, not easy and made a spot welder to weld on some studs. Cheers Matt.

30th July 2009, 01:30 AM	#7
DynacoDave diyAudio Member Join Date: Dec 2006	I like tuna cans.

30th July 2009, 02:41 AM	#8
Geek diyAudio Member Join Date: Sep 2004	Lots of beautiful stainless things can be had inexpensively from east Indian stores

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