Well after re-researcing the pinouts again I decided to post this while they are fresh. These Pinouts are for units removed from FTS Cesium standards and were verified by measurement in the standard. PIN 1000B 1000A-100 1200 9110 1 EFC ground EFC ground EFC ground EFC ground 2 EFC +- 10V EFC +- 10V EFC 0 to +10V EFC 0 to +10V 3 coarse tune wiper NC NC NC 4 +12 pot ref. (10K) NC NC NC 5 Ground Ground Ground Ground 6 oven mon. oven mon. oven mon. oven mon. 7 +28V oven +18V oven NC NC 8 +28V elect. +28V +28V +28V 9 case ground NC NC NC Hope this will help others! Corby Dawson ____________________________________________________________ Click here to find the perfect picture with our powerful photo search features. http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTEuJFVrwUbhZLMoWdkMvKFgvKsveMbYvndjqBMzsnp5Ao03AENzO4/