Not the first. Maybe the first electronic one. Some from wikipedia: .. the bellows-operated "acoustic-mechanical speech machine" of Wolfgang von Kempelen of P

Not the first. Maybe the first electronic one. Some from wikipedia: .. the bellows-operated "acoustic-mechanical speech machine" of Wolfgang von Kempelen of Pressburg, Hungary, described in a 1791 paper. This machine added models of the tongue and lips, enabling it to produce consonants as well as vowels. In 1837, Charles Wheatstone produced a "speaking machine" based on von Kempelen's design, and in 1846, Joseph Faber exhibited the "Euphonia". In 1923 Paget resurrected Wheatstone's design.