Ondes Martenot Description: Early monophonic tube synthesizer with main/palm/metalique diffusor set Designed by: Maurice Martenot Location: France Year: 1962 Complete History:   Fig 1.1: Ondes with Speaker Set Fig 1.2: Metalique Speaker Fig 1.3: Metalique Speaker Rear Fig 1.4: Palm Speaker Fig 1.5: Main Speaker Fig 1.6: Control Panel