The "Warbo Formant Orgel" (1937) 
The "Melodium: (1938) 

 

The Warbo Formant Orgel (1937)

The Warbo Formant Orgel was the first instrument designed by the designer and pioneer of electronic instruments, Harald Bode (born Hamburg 19 Oct 1909) while at the Heinrich-Herst Institut für Schwingungsforschung at the Technische Hochschule in Berlin. The Warbo Formant Orgel was designed and built in collaboration with C. Warnke and eventually went into commercial production by ......AG, Dachau. As with many other instruments designed by Bode the 'Warbo Formant Orgel' pioneered aspects of electronics that became standard in later instruments. The Warbo Formant Orgel was a partially polyphonic four-voice keyboard instrument with 2 filters and key assigned dynamic envelope wave shaping, features that were later used on the postwar 'Melochord'. 

 

The "Melodium" (1938)

Bode's second instrument, previewed in 1938 was a monophonic touch sensitive keyboard instrument, the 'Melodium', developed with the assistance of Oskar Vierling, inventor of the 'Grosstonorgel'. The instrument also incorporated a pedal for vibrato and a tuning/transposition knob.