toroid questions

slr 5000 · 28th April 2008, 11:56 PM

hi guys im about to build a new amp kit from aussie amps and ive got 4 x300va 40 0 40 transformers .my question is can i join them together some how to get 2 x 600va transformers without increasing the voltage . my old amp a gb 300 was happy to run with the 300va toroids .1 per channel but the new amp would be better with 600va per channel or more so i was hoping to use the toroids i have somehow instead of buying new ones . cheers

gni · 29th April 2008, 03:07 AM

I don't think so. . . parallel connection with any imbalances could be
problematic. . . two different cores.

sreten · 29th April 2008, 10:40 AM

Hi,

I cannot see the problem of joining the outputs together
after seperate bridge rectifiers per transformer.

/sreten.

ifrythings · 30th April 2008, 03:08 AM

Hook them up in series and use full wave rectification.

slr 5000 · 30th April 2008, 11:21 AM

thanks for the help guys .what exactly will the bridge rectifiers acheive i thought a rectifier changed ac to dc ? my power supply boards already do this

28th April 2008, 11:56 PM	#1
slr 5000 diyAudio Member Join Date: Oct 2007 Location: melbourne	toroid questions hi guys im about to build a new amp kit from aussie amps and ive got 4 x300va 40 0 40 transformers .my question is can i join them together some how to get 2 x 600va transformers without increasing the voltage . my old amp a gb 300 was happy to run with the 300va toroids .1 per channel but the new amp would be better with 600va per channel or more so i was hoping to use the toroids i have somehow instead of buying new ones . cheers

29th April 2008, 10:40 AM	#3
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, I cannot see the problem of joining the outputs together after seperate bridge rectifiers per transformer. /sreten. __________________ There is nothing so practical as a really good theory - Ludwig Boltzmann When your only tool is a hammer, every problem looks like a nail - Abraham Maslow

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29th April 2008, 03:07 AM	#2
gni diyAudio Member Join Date: Sep 2006	I don't think so. . . parallel connection with any imbalances could be problematic. . . two different cores.

30th April 2008, 11:21 AM	#5
slr 5000 diyAudio Member Join Date: Oct 2007 Location: melbourne	thanks for the help guys .what exactly will the bridge rectifiers acheive i thought a rectifier changed ac to dc ? my power supply boards already do this

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