I have ordered some really nice 600 ohm 1:1 audio transformers (20cps to 20kcps) from Edcor Electronics and was surprised at the high quality of the transformers, how reasonable their prices were and how fast my order got here. Interesting that no experience is needed but I got the impression that the construction of their custom transformers is probably an automated operation. Maybe that "shed" is where they store their lawn equipment and the transformer facility is a huge underground facility!
