Kundo Space Timer Clock, synchronised to the 77.5 kHz time signals from the DCF 77 radio transmitter at Mainflingen, near Frankfurt, Germany, made by Kieninger und Obergfell GmbH, St Georgen/Schw, Germany, in 1988. Kundo 'Space Timer' radio-controlled quartz desk clock, 1988. 1988
Laser clock, radio controlled, tuned to the Rugby signal, using laser beams instead of hands, made by T. Vetterlein and D. Hoppstadter, Germany, 1997, separate power lead. Laser clock 1997