Tight space in enclosure: vertically mounted trafo?

maurycy · 15th March 2010, 03:21 PM

Are there any side effects of mounting trafo vertically in a tight enclosure? I am planning on adding second transformer to my gainclone but the enclosure is tall but narrow so I would have to mount them vertically attached to the side.

Thanks.

pra3718 · 15th March 2010, 04:17 PM

For myself it does not matter. I have mounted trafo this way. Yet, wait for expert's post.

tomchr · 16th March 2010, 01:30 AM

I assume you are using a toroidal transformer. The leakage fields of your transformer will interact slightly differently with the amp circuitry, but I doubt you'll be able to detect much of a difference. In fact I remember seeing a National Semiconductor application note where they mounted the toroidal transformers vertically to save space. The measured performance of the amp was top notch. It might have been one of the app notes for the LM4702 but I don't remember exactly.

With an E-I core transformer, on the other hand, orientation does matter as its leakage fields are much stronger and more directional.

~Tom

maurycy · 16th March 2010, 01:18 PM

Yes, I have toroidal trafo. Thanks for replies. I will mount it vertically then.

15th March 2010, 03:21 PM	#1
maurycy diyAudio Member Join Date: Dec 2005 Location: NJ	Tight space in enclosure: vertically mounted trafo? Are there any side effects of mounting trafo vertically in a tight enclosure? I am planning on adding second transformer to my gainclone but the enclosure is tall but narrow so I would have to mount them vertically attached to the side. Thanks.

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15th March 2010, 04:17 PM	#2
pra3718 diyAudio Member Join Date: Jan 2009	For myself it does not matter. I have mounted trafo this way. Yet, wait for expert's post.

16th March 2010, 01:30 AM	#3
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	I assume you are using a toroidal transformer. The leakage fields of your transformer will interact slightly differently with the amp circuitry, but I doubt you'll be able to detect much of a difference. In fact I remember seeing a National Semiconductor application note where they mounted the toroidal transformers vertically to save space. The measured performance of the amp was top notch. It might have been one of the app notes for the LM4702 but I don't remember exactly. With an E-I core transformer, on the other hand, orientation does matter as its leakage fields are much stronger and more directional. ~Tom

16th March 2010, 01:18 PM	#4
maurycy diyAudio Member Join Date: Dec 2005 Location: NJ	Yes, I have toroidal trafo. Thanks for replies. I will mount it vertically then.

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