Rubidium time standard exciter. | |||
Sample Image | Spin Video | QuickTimeVR Rotation | |||
Rubidium time standard exciter. This is a small bulb that, in the original device, was positioned next the cell shown in the previous sample. It is, I am told, filled with a larger amount of rubidium than the larger cell, and serves as the the exciter, transmitting radio waves of the correct frequency to excite the lower-pressure rubidium vapor in the larger cell. (Lower pressure means narrower spectral line, and thus higher accuracy.) Source: eBay seller nhbbobb1985 Contributor: Theodore Gray Acquired: 19 November, 2008 Text Updated: 10 January, 2009 Price: $38 Size: 0.75" Purity: 99.9% | |||
|