Hello Time-Nuts, Just wondering if anyone out there has a copy of the Frequency Electronics FE-5440A cesium clock manual? Yes, Silosurplus has one on ebay for a stupid price but I'm not THAT interested. The aviation version was the TD-1251/U and the mil version was the O-1824A/U. I would be more than happy to pay the postage both ways, do the scanning/copying, and would definitely get it back to you. Thanks, Skip Withrow