Caleb Warner (September 12, 1922 – August 24, 2017)[1][2] was a marine and acoustical engineer and a classical trumpeter, who was best known for co-designing the Baldwin Spinet Electric harpsichord which was used on The Beatles' song "Because".
[3] He attended Phillips Exeter Academy in New Hampshire,[3] before studying acoustical and marine engineering at the University of Michigan,[2][3] graduating in 1944.
Warner also designed and produced solid body rehearsal harpsichords and dulcimers.
[5][11] A harpsichord with a steel frame and a formica case, designed by Warner and Herz, accompanied Joel Spiegelman on an exchange visit to the USSR in 1965.
[12] Another Warner-designed and built harpsichord was gifted by a donor to the Chicago Symphony Orchestra in 1961.