would these work well as signal isolation transformers?

[jimijam]

found these while researching a project and was wondering if they would work well to eliminate ground loop hum when used as isolaters.
http://www.ebay.com/itm/ESAN-S4T-21G-Encapsulated-Toroidal-Transformer-Qty-10-/120919766410?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item1c2761358a#ht_1342wt_1151

I am just starting to read up on transformers and would like someone with a little more wisdom on this stuff to chime in. I could definately use some of these from time to time (if they do what I think they will)

[oldhousescott]

You'll need something more like this from Weber:

https://taweber.powweb.com/store/balun.jpg

Edcor has something similar, probably better quality:

http://www.edcorusa.com/c/13/wsmseries

Then you get into the high zoot stuff, Jensen, Cinemag, Sowter.

[jimijam]

thanks. I'm checking these out.