Yes, the transformers are made by Carnhill. You can find more info at Thomas Kristianssons site Vintagedesign.tk .I would like to say a big thank you to Thomas, he helped me alot.
It was a real pain for me to buy from Carnhill. Be careful when you buy from them because they will send you a qoutation for the number of transformers you buy. If you buy just an input and an output transformer you can pay almost three times as much per transformer then if you buy ten pairs. If you can buy more it will be cheaper.
Last week I solved the problem and bought ten in and ten output transformers for my Neve preamps.