Since end of year 2005
The free end of the quartz tube with two capacitive
transducers (of the same type as in Vyhne) in
Sopron - Bánfalva geodynamic observatory
of Geodetic and Geophysical Research Institute of
Hungarian Academy of Sciences.
The clamped end of the quartz tube in Sopron - Bánfalva. In Vyhne, all the tube is hidden in styropore box, so there is much less to see than in Bánfalva.