"Free Music" machine components <a href="/grainger/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Free+Music">Free Music</a> The box of Free Music components that this object is part of contains scraps of wood, metal, paper and rubber. - Wood and felt frame (musical instrument?) - Small piece of cardboard with electronic components attached - transformer, potentiometer, diode, resistors, capacitors, choke, wires and solder. <a href="/grainger/items/browse?advanced%5B0%5D%5Belement_id%5D=39&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Various+creators%2C+material+gathered+by+Percy+Grainger+for+his+Free+Music+experiments">Various creators, material gathered by Percy Grainger for his Free Music experiments</a> 1940s-1950s 04.1126