A rubidium standard, or rubidium atomic clock ... stepper motor inside an old analog clock case and attached a pointer to it. He also built an add-on circuit with 5 LED’s as outputs that ...

His Rubidium-standard atomic real-time clock is surely an example of hardware ... and a custom fabricated aluminum chassis pan. For the circuit itself [Art] tells us he wanted to build something ...

China’s super-thin rubidium atomic clock ... with the previous generation, the new clock is smaller in size but performs better. It adopts a plug-in design, making it easy to insert and remove on ...

BEIJING - China's super-thin rubidium atomic ... the new clock is smaller in size but performs better. It adopts a plug-in design, making it easy to insert and remove on circuit board.