Tuning fork with pen
Article No: 13289-00
To record the oscillation of a tuning fork on a piece of paper. The tuning fork has a frequency of about 20 Hz and oscillates visibly. The oscillations can easily be recorded on a piece of paper - no further preparations needed. The clamp for the pen measures 1 cm in diameter, which allows to use also markers, e.g. to record the pattern on a overhead transparancy for demonstration purposes. Frequency app. 20 Hz Clamp for pen: diameter 1 cm Complete with permanent marker