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電子キーボード Yamaha Electone BK-20AのPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Yamaha Electone BK-20A 28 ページ。 Owner's manual
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The Electone's special throbbing tremolo is produced by a smaller-size Natural Sound een

that really

spins just behind the tremolo speaker grille on the side of the cabinet.

On the BK-20A there are four tremolo selectors, located on the right side of the lower manual, each with

an on/off function

They are complemented by a continuous tremolo speed contro! knob just above them.

€

Upper Voice (Main/Rotary) : @

Lets you divert upper manual tones from the main

to the tremolo speaker.

€

Lower Voice (Main/Rotary) : @

Does the same for lower manual tones.

Upper Flute Split: @

This tablet feeds only Flute tones of the upper

manual

and upper preset buttons 1, 2, 3 to the

tremolo

speakers.

Combined

with other

upper

manual tones through the main speaker it creates a

rich, singing blend.

When the speed control is set.to its central position,

the Tremolo tablet will turn the speaker at seven

revolutions per second. The Chorus tablet will turn it

at one revolution per second.

Once

either tablet is switched

on, it takes several

seconds for the tremolo speaker to attain the standard

speed.

This is also true when switching to a slower

speed (Tremolo to Chorus).

If one of the other tre-

molo contro! tablets is switched on during this speed

"Change period, the speed variation will be heard in the

music.

lf you wish an instant tremolo or chorus sound, be

sure to switch on that tablet well in advance of one

of the speaker selectors.

For special selections you

can use this speed variation by switching the speaker

TREMOLO

CHORUS

UPPER

FLUTE SPLIT (Tremolo or Chorus)

Tremolo