I just inheirited this unit. I know someone will think I'm wasting my time with it but I like cool old tools like this. I tried it out on a 120v compressor and the unit works fine. I was wondering about 240v. It says to use the cord adapter but it was missing. Is it just a 240v plug on one end and a 120v recpatcle on the other end to plug onto the cord or is it really something special. The co. That bought out Imperial no longer handles anything or has any "tech help" for this.