https://www.nretec.com/pages/about-us
They seem good, but that is from their website...I have no links at all to them.
They seem good, but that is from their website...I have no links at all to them.
Recently I was in trafo buzz discussion, here:
https://www.diyaudio.com/community/threads/toroidal-power-transformers-questions.409995/post-7680906
In short, or trafo well built (among other things oversized, meaning capable of higher voltage), or reduce voltage. I have many of those 220v and some doesn't buzz, some does.
For buying those, I really suggest you search where is your local metal recycling company. This I paid 50euro
https://www.diyaudio.com/community/threads/and-what-did-we-buy-today.143603/post-7705690
Among other thing there is one Solton Craaft 2 x 600 w linear Amp with 1600w trafo, 16x2sc5200/2sdxxx are just to add. But trafos not really best you find there, they are many. Look at ghielmetti patch bays, these are jewels
https://www.diyaudio.com/community/threads/toroidal-power-transformers-questions.409995/post-7680906
In short, or trafo well built (among other things oversized, meaning capable of higher voltage), or reduce voltage. I have many of those 220v and some doesn't buzz, some does.
For buying those, I really suggest you search where is your local metal recycling company. This I paid 50euro
https://www.diyaudio.com/community/threads/and-what-did-we-buy-today.143603/post-7705690
Among other thing there is one Solton Craaft 2 x 600 w linear Amp with 1600w trafo, 16x2sc5200/2sdxxx are just to add. But trafos not really best you find there, they are many. Look at ghielmetti patch bays, these are jewels
Date is 2009, so it seems salvaged from somewhere, possibly a refuse tip or scrap heap.
In that case, a tenner is reasonable.
In that case, a tenner is reasonable.