I have a Regentone WIB battery eliminator that I’m going to try and restore as a project. But I have found it contains what is a most unusual transformer or at least I have never seen one similar. If you look at the outer windings these are iron and think this is used as the magnetic core. Can anyone enlighten me to the name for this style of transformer or provide any information about it. I was wondering if the transformer had an inner core ? Please see pictures attached. I am also making a video about the restoration
https://youtu.be/rPG3I4s7lf0
Thanks Chris