Tremolo/Chorus - Yamaha Electone EL-87 Owner's Manual

(3) Tremolo/Chorus

Tremolo recreates the rich, swirling sound of the popular rotating speaker
effect. Just as with a conventional rotating speaker, you can switch
between slow and fast speeds. And like a motor-driven speaker, the
characteristic tremolo effect gradually changes speed after it is switched.
You can also adjust the maximum speed of the effect to suit your playing
style. The Tremolo effect can be switched in real time as you play with
either the front panel button or the left footswitch (when properly set
for footswitch operation).
Tremolo Operation
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