Stancor RT-204 transformer for chipmap power supply?

lapoltba · 28th January 2007, 04:25 PM

HI,

I was wondering if this would be a suitable transformer to use for a chipamp. It seems to have quite a bit of current capeability and a large variety of outputs with multi primary choices too. http://www.mpja.com/productview.asp?product=16153+TR

I was looking at the datasheet found here .... http://www.mpja.com/download/14466tr.pdf
but i couldnt really make sense of their charts for the voltage selection. At $20 a piece though you cant really go wrong.

If someone could help me it would be greatly appreciated as this is my stumbling block when building my project.

i assume that they are unsheilded, so i wold probably get some aluminum sheeting to form a sheild for them, or just house them separately, idk.

thanks.

-Brian-

lapoltba · 28th January 2007, 04:28 PM

Just fond these after i posted... but they have ct 12-0-12 @ 10A supplies for $17 each..... im sure there is a way to use two to get 24-0-24 (@ 20A i think ) out of them.... im praying that this is a cheap solution for large toroidal transfo. i will be running a 5 chanel (biamped) speaker system and i need all the power i can get for cheap

http://www.mpja.com/productview.asp?product=7846+TR

heres the list of their power transformers.... they have a bunch that may work as well.

http://www.mpja.com/listitems.asp?dept=45

phn · 28th January 2007, 06:54 PM

I think your best bet is a toroidal trafo. http://www.hammondmfg.com/182.htm

You will need between 160VAC and 300VAC. Rather large for the power of the chip amp.

Voltage is dependent on chip and speakers, 4 or 8Ohms.

No shielding is needed.

lapoltba · 29th January 2007, 02:57 AM

yeah, probably....

But toroids are expensive, and im working within a budget.... Ive read that separate transfos per channel (monoblock type configuration) is always best.... so in that respect, getting multiple small transformers would be nice....

maybe im wrong, hopefully i can get some more opinions.

head_spaz · 29th January 2007, 04:03 AM

lapoltba,
Check your e-mail.

28th January 2007, 04:25 PM	#1
lapoltba diyAudio Member Join Date: Jan 2007	Stancor RT-204 transformer for chipmap power supply? HI, I was wondering if this would be a suitable transformer to use for a chipamp. It seems to have quite a bit of current capeability and a large variety of outputs with multi primary choices too. http://www.mpja.com/productview.asp?product=16153+TR I was looking at the datasheet found here .... http://www.mpja.com/download/14466tr.pdf but i couldnt really make sense of their charts for the voltage selection. At $20 a piece though you cant really go wrong. If someone could help me it would be greatly appreciated as this is my stumbling block when building my project. i assume that they are unsheilded, so i wold probably get some aluminum sheeting to form a sheild for them, or just house them separately, idk. thanks. -Brian-

29th January 2007, 04:03 AM	#5
head_spaz diyAudio Member Join Date: Mar 2004 Location: Arkansas	lapoltba, Check your e-mail. __________________ Writing is good exercize for the texticles!

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28th January 2007, 04:28 PM	#2
lapoltba diyAudio Member Join Date: Jan 2007	Just fond these after i posted... but they have ct 12-0-12 @ 10A supplies for $17 each..... im sure there is a way to use two to get 24-0-24 (@ 20A i think ) out of them.... im praying that this is a cheap solution for large toroidal transfo. i will be running a 5 chanel (biamped) speaker system and i need all the power i can get for cheap http://www.mpja.com/productview.asp?product=7846+TR heres the list of their power transformers.... they have a bunch that may work as well. http://www.mpja.com/listitems.asp?dept=45

28th January 2007, 06:54 PM	#3
phn diyAudio Member Join Date: Oct 2004	I think your best bet is a toroidal trafo. http://www.hammondmfg.com/182.htm You will need between 160VAC and 300VAC. Rather large for the power of the chip amp. Voltage is dependent on chip and speakers, 4 or 8Ohms. No shielding is needed.

29th January 2007, 02:57 AM	#4
lapoltba diyAudio Member Join Date: Jan 2007	yeah, probably.... But toroids are expensive, and im working within a budget.... Ive read that separate transfos per channel (monoblock type configuration) is always best.... so in that respect, getting multiple small transformers would be nice.... maybe im wrong, hopefully i can get some more opinions.

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