1983 experimental rig testing electro acoustic system. Square wave is fed via electromagnet to tensioned spring steel strip. Energy and frequency modulation is via photovoltaic panel. This formed basic system for a series of later electro acoustic pieces including Middelberg Morris Minor and Expo 88 Solar Device for Deep Field Noises. Harmonics and overtones add organic richness to the square wave. This was filmed on the banks of the river Exe.
Produced during Fellowship in Sculpture at Exeter College of Art.