Electric organ
The American inventor Laurens Hammond invented the electric organ in the 1930s. The electric organ looks just like an ordinary pipe organ, but doesn’t work unless it’s switched on. When the keys are pressed, electric signals are made. The signals go to a pre-amplifier, where they are made stronger, then to an amplifier and then come out of the loudspeaker as musical notes. It sounds just like the real thing! (More…)
dodo
21 Oct, 2008
