Hammond Organ

Hammond B-3 Organ & Leslie 122/147 Easy Improvement and Restoration Tips for NON Technicians

"The Hammond organ is an electric organ which was invented by Laurens Hammond in 1934 and manufactured by the Hammond Organ Company. While the Hammond organ was originally sold to churches as a lower-cost alternative to the wind-driven pipe organ, in the 1960s and 1970s, it became a standard keyboard instrument for jazz, blues, rock music and gospel music. The original Hammond organ used additive synthesis of waveforms from harmonic series made by mechanical tonewheels which rotate in front of electromagnetic pickups. The component waveform ratios are mixed by sliding drawbars mounted above the two keyboards. Although many different models of Hammond organs were produced, the Hammond B-3 organ is the most well-known type.

The Old Church Organ ( an Educational Service From Hammond Organ Company No. 10) (Sheet music)

American engineer and inventor Laurens Hammond filed U.S. Patent 1,956,350 for a new type of "electrical musical instrument" that could recreate a pipe organ-type sound. He got the idea for the tonewheel by listening to the moving gears of his electric clocks and the tones produced by them. He understood the fact that every instrument sounds the way it does because of its many harmonic overtones and their varied intensities. The invention was unveiled to the public in April 1935 and the first model, the Model A, was made available in June of that year. The organ was first used for popular music by Milt Herth, who played it live on WIND (AM) soon after it was invented. Radio shows of the 1930s and 40s used the Hammond for not only mood music but more significantly, for sound effects. By using specific draw bar settings, it was possible to make the organ sound like clock

Hammond Organ

Hammond Organ Sheet Music

Hammond Organ Repair