Sperry Phoenix MC-1 Compass Calibrator
I purchased this unit a while back with some other electronic equipment at a local auction. From what I understand, this unit is used for calibrating magnetic compasses, possibly in aircraft. From what I can tell, is in good condition and knobs/switches mechanically worked when they were actuated. I don't know much about these, but if I omitted any info or if you have a question, e-mail me. Due to the fact that I have no way to test this item, this unit is being sold as-is.