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Geräuschkissen 1968
20 copies
Pillow, speaker, electric metronome 40 x 40 x 12 cm

A loud speaker is placed inside the cushion and connected to an electronic metronome. Attached to the metronome there is a potentialmeter which makes it possible to alter the time frequency with a screw driver. This is fed by a 9 V battery, controlled by a contact switch.