where to buy a nice toroid transformers

paulyang · 8th January 2006, 07:54 AM

i need 9-0-9 and 18-0-18secondaries .....0.0a
about 3A or 2A for each.....0.0a

Does somebobdy know where to get this stuff???

thank you!!!

forr · 8th January 2006, 10:47 AM

Hi Paulyang

Are you sure the toroid technology is nice for audio ?

~~~~ Forr

§§§

Upupa Epops · 8th January 2006, 11:29 AM

And what is " nice for audio ", Forr ? Some excaved transformer from the year 26' ?

forr · 8th January 2006, 01:54 PM

Hi UPUPA EPOPS
>And what is " nice for audio ", Forr ? Some excaved transformer from the year 26' ?

There has been a lot of discussions on this forum about pros and cons of toroidal transformers. From them, I retained that they are not the best suited for immunity against mains parasitics. So I define "nice for audio" by negativity as avoiding defects, otherwise said : "blameless".

~~~~~~ Forr

§§§

BWRX · 8th January 2006, 10:51 PM

Plitron's standard toroid transformers are very nice but pricey. You'll also have to wait 4-6 weeks for them to make and deliver one.

EWorkshop1708 · 10th January 2006, 05:02 AM

Quote:

Originally posted by forr
Hi UPUPA EPOPS
>And what is " nice for audio ", Forr ? Some excaved transformer from the year 26' ?

There has been a lot of discussions on this forum about pros and cons of toroidal transformers. From them, I retained that they are not the best suited for immunity against mains parasitics. So I define "nice for audio" by negativity as avoiding defects, otherwise said : "blameless".

~~~~~~ Forr

§§§

Just add an inductor and some caps for mains filtering

BobEllis · 10th January 2006, 05:25 AM

Digikey has a PC mount 9-0-9 transformer that would suit your needs at a reasonable price - part number TE70081-ND

parts express has an 18V Avel that is a bit large, at 160VA, but under $40

Avel Lindberg will also sell direct, and has a broader range than PE carries, including a couple of options for both of your requirements. Although not quite the reputation of Plitron, their Chinese made Y23 line is good quality. I have used a few higher power ones. No mechanical noise and good regulation.

Toroid of Maryland www.toroid.com also sells direct and makes good quality transformers. I used their products, too.

Victoria Magnetics has an excellent reputation, and will do customs at near standard prices. Do you need both voltages for the same project? they'll probably be able to wind you a dual secondary transformer for less than two individuals. The catch is the wait - about the same as mentioned for Plitron.

paulyang · 10th January 2006, 06:06 AM

Dear all......

i got some information from you guys.....

thank you for that ......

the reason i need to use toroid transformers because i have not much place to put nice Ei or some other nice transformers...so i need to save some spaces....otherwise, the reason why i don't want to buy toroid transformers at digi key because they do not offer 9-0-9 and 18-0-18 in ONE!! the second reson is I preffer transformers made in USA or in Eourp .....0.0"

By the way......this transformers is for my Studer 727 CDP.....0.0a

8th January 2006, 07:54 AM	#1
paulyang diyAudio Member Join Date: Jun 2005 Location: IN, 47807	where to buy a nice toroid transformers i need 9-0-9 and 18-0-18secondaries .....0.0a about 3A or 2A for each.....0.0a Does somebobdy know where to get this stuff??? thank you!!!

8th January 2006, 10:51 PM	#5
BWRX diyAudio Moderator Emeritus Join Date: Jan 2005 Location: Pennsylvania	Plitron's standard toroid transformers are very nice but pricey. You'll also have to wait 4-6 weeks for them to make and deliver one. __________________ Brian

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8th January 2006, 10:47 AM	#2
forr diyAudio Member Join Date: Dec 2004 Location: Next door	Hi Paulyang Are you sure the toroid technology is nice for audio ? ~~~~ Forr §§§

8th January 2006, 11:29 AM	#3
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	And what is " nice for audio ", Forr ? Some excaved transformer from the year 26' ?

8th January 2006, 01:54 PM	#4
forr diyAudio Member Join Date: Dec 2004 Location: Next door	Hi UPUPA EPOPS >And what is " nice for audio ", Forr ? Some excaved transformer from the year 26' ? There has been a lot of discussions on this forum about pros and cons of toroidal transformers. From them, I retained that they are not the best suited for immunity against mains parasitics. So I define "nice for audio" by negativity as avoiding defects, otherwise said : "blameless". ~~~~~~ Forr §§§

10th January 2006, 05:25 AM	#7
BobEllis diyAudio Member Join Date: Sep 2003 Location: Upstate NY	Digikey has a PC mount 9-0-9 transformer that would suit your needs at a reasonable price - part number TE70081-ND parts express has an 18V Avel that is a bit large, at 160VA, but under $40 Avel Lindberg will also sell direct, and has a broader range than PE carries, including a couple of options for both of your requirements. Although not quite the reputation of Plitron, their Chinese made Y23 line is good quality. I have used a few higher power ones. No mechanical noise and good regulation. Toroid of Maryland www.toroid.com also sells direct and makes good quality transformers. I used their products, too. Victoria Magnetics has an excellent reputation, and will do customs at near standard prices. Do you need both voltages for the same project? they'll probably be able to wind you a dual secondary transformer for less than two individuals. The catch is the wait - about the same as mentioned for Plitron.

10th January 2006, 06:06 AM	#8
paulyang diyAudio Member Join Date: Jun 2005 Location: IN, 47807	Dear all...... i got some information from you guys..... thank you for that ...... the reason i need to use toroid transformers because i have not much place to put nice Ei or some other nice transformers...so i need to save some spaces....otherwise, the reason why i don't want to buy toroid transformers at digi key because they do not offer 9-0-9 and 18-0-18 in ONE!! the second reson is I preffer transformers made in USA or in Eourp .....0.0" By the way......this transformers is for my Studer 727 CDP.....0.0a