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by stavros 1074 days ago
Apparently the Voder had a pitch pedal:

https://imgz.org/i9TzhzWu/
1 comments
bradrn 1074 days ago
Ah, that would explain it. Thanks for finding that image!
link
stavros 1074 days ago
No problem! It's from a video linked in a thread below (the extended World's Fair presentation).
link