I am working on restoring a rudder twin and ran across this video on youtube for rebuilding the coils for these. https://www.youtube.com/watch?v=e2vxDqF_OEU
In the video it is suggesting replacing the original coils with a Zephyr coil (mentioned at 2:15 into the video). What I would like to know is if there are other options for coils? Are the Zephyr coils available? Where can I get them?
Has anyone else tried this and has it worked?
Thank you for your help.