transformers for ClassD amplifier

ecodoppler · 14th January 2009, 02:08 PM

I'm searching two C-core transformers for my Eco Tec 600 watts modules in Europe (spec:
Primary 230Vac, 50Hz
Secondary 70Vrms, 9A (for full power, you can derate this for lower
power)
Auxiliaries 15Vrms, 0V, 15Vrms auxiliary secondaries (centre-tapped) at
0.3A. I've contacted the Avondale Audio but they don't have them no longer.
Someone could help me?
Thank you

basstard · 17th January 2009, 11:24 AM

You need someone to build them to your specs,,, in italy we got Delbini [ near Bergamo IIRC - http://www.dte-trasformatori.it/frsindex.htm ] and Fiat Trasformatori [ no, it ain't the car maker, it's in Roma - http://www.fiat-trasformatori.it/ ].

ecodoppler · 17th January 2009, 12:20 PM

Dear Basstard
thank you for your reply. I call the FIAT transformers the next week. Did you ever buy something from them?
Regards

basstard · 17th January 2009, 01:53 PM

yes, I bought a small toroidal trafo in 2007 and they were very quick, I called in at lunch hour and then the very next day it was ready and I went buying it. You can order by phone. They ain't exactly cheap and I've seen better transformers around but they're the only company I know that can do you toroidals to your specs. A search for "trasformatori" on www.paginegialle.it around your hometown might be worth a try too.

ecodoppler · 17th January 2009, 02:48 PM

Basstard
Probably I'll ask an estimate to Bartolucci and Elettronicanovarria.
Regards

basstard · 17th January 2009, 06:29 PM

yeah, I brought a trafo from novarria, nice build quality and pretty cheap but I didn't remember they also realized transformers on specs.

ecodoppler · 17th January 2009, 10:09 PM

Yes, on their website there is this possibility. Obviously their transformers will be cheaper than Bartolucci. I received a very good offer from Canterbury UK but, in this case, they are toroidal.

basstard · 18th January 2009, 10:04 AM

You mean Antrim Transformers? I guess the shipping would be quite costy tho,,,

ecodoppler · 18th January 2009, 07:17 PM

I mean:http://www.canterburywindings.co.uk/. Terry Monaghan has a very good reputation and is very competitive (195 euro for two toroidal transformers shipping included).

basstard · 18th January 2009, 09:29 PM

thanx, I just requested a quotation,,,

also, take a look here: http://www.paginegialle.it/pgol/4-tr...i/3-Noicattaro

14th January 2009, 02:08 PM	#1
ecodoppler diyAudio Member Join Date: Sep 2005	transformers for ClassD amplifier I'm searching two C-core transformers for my Eco Tec 600 watts modules in Europe (spec: Primary 230Vac, 50Hz Secondary 70Vrms, 9A (for full power, you can derate this for lower power) Auxiliaries 15Vrms, 0V, 15Vrms auxiliary secondaries (centre-tapped) at 0.3A. I've contacted the Avondale Audio but they don't have them no longer. Someone could help me? Thank you

17th January 2009, 02:48 PM	#5
ecodoppler diyAudio Member Join Date: Sep 2005	transformers Basstard Probably I'll ask an estimate to Bartolucci and Elettronicanovarria. Regards

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17th January 2009, 11:24 AM	#2
basstard diyAudio Member Join Date: Jan 2008	You need someone to build them to your specs,,, in italy we got Delbini [ near Bergamo IIRC - http://www.dte-trasformatori.it/frsindex.htm ] and Fiat Trasformatori [ no, it ain't the car maker, it's in Roma - http://www.fiat-trasformatori.it/ ].

17th January 2009, 12:20 PM	#3
ecodoppler diyAudio Member Join Date: Sep 2005	Dear Basstard thank you for your reply. I call the FIAT transformers the next week. Did you ever buy something from them? Regards

17th January 2009, 01:53 PM	#4
basstard diyAudio Member Join Date: Jan 2008	yes, I bought a small toroidal trafo in 2007 and they were very quick, I called in at lunch hour and then the very next day it was ready and I went buying it. You can order by phone. They ain't exactly cheap and I've seen better transformers around but they're the only company I know that can do you toroidals to your specs. A search for "trasformatori" on www.paginegialle.it around your hometown might be worth a try too.

17th January 2009, 06:29 PM	#6
basstard diyAudio Member Join Date: Jan 2008	yeah, I brought a trafo from novarria, nice build quality and pretty cheap but I didn't remember they also realized transformers on specs.

17th January 2009, 10:09 PM	#7
ecodoppler diyAudio Member Join Date: Sep 2005	Yes, on their website there is this possibility. Obviously their transformers will be cheaper than Bartolucci. I received a very good offer from Canterbury UK but, in this case, they are toroidal.

18th January 2009, 10:04 AM	#8
basstard diyAudio Member Join Date: Jan 2008	You mean Antrim Transformers? I guess the shipping would be quite costy tho,,,

18th January 2009, 07:17 PM	#9
ecodoppler diyAudio Member Join Date: Sep 2005	I mean:http://www.canterburywindings.co.uk/. Terry Monaghan has a very good reputation and is very competitive (195 euro for two toroidal transformers shipping included).

18th January 2009, 09:29 PM	#10
basstard diyAudio Member Join Date: Jan 2008	thanx, I just requested a quotation,,, also, take a look here: http://www.paginegialle.it/pgol/4-tr...i/3-Noicattaro

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