What kind were they? I have a problem with red tomatoes, but the yellow ones don’t seem to full of acid.
I think they are Yellow Brandywine Heirloom. They get fairly large. I also have some other yellow varieties I ordered from the Only Tomato catalog. There was a link on the weekly gardening thread several weeks ago.
Here is a link for yellow tomatoes:
http://www.bing.com/images/search?q=yellow+tomatoes&qpvt=yellow+tomatoes&view=medium&FORM=VBCIRM