Råber

International names:

Speaking trumpet, Sprachrohr, Porte voix, tuba stentora

Danish Instrument Inventory text:

Megaphone. Black painted sheet iron. Max Dia150, min Dia26 L540. Golden foliage ornaments.Not signedc1800 (g)

• Category: Pressure
• Hauch number: H14x
• Inventory number: 4120
• Danish Instrument Inventory number: 1623

• Hauch references:
• Begynd.grund: §0
• Cabinet 1: 0

• Literature:
• Nollet, J. A.: 3,11213
• Sigaud de Lafond : 2,1301
• The King George III Collection: D 47

• Musschenbroek(1729) pl.XXVI fig.11

  's Gravesande(1747) pl.76 fig.3

  Gehler(1787-96) IV p.168

  Erxleben(1790) p.231

  Gehler(1825-45) VIII p.459