Dunlop JD-4S User Manual

The Rotovibe™ is a versatile and reliable effects
device. Its different sounds are only limited by the
musician's imagination. It is sturdy and well
constructed giving you years of outstanding
performance.

OPERATING INSTRUCTIONS

■ Play a chord on the instrument and move pedal up
and down. The speed will vary from a slow sweep
(heel down) to a fast pulsing sound (toe down).

■ In the Vibrato mode, the instrument's pitch will
change slightly. In the Chorus mode, the instrument
will make a swirling sound. The push button on the
right side of the pedal changes the effect from vibrato
to chorus.

■ The knob on the right side of the pedal controls the
intensity of the effect. Moving it forward increases
the amount of effect, moving it back decreases the
amount of effect.

■ The Rotovibe™ has a low noise output driver with
a source impedance of 1k ohm, insuring the fidelity
of your instrument sound through long cables.

TIPS

■ Try various settings with each effect separately.
When using the Rotovibe™ with other effects that
alter the speed of the sound, set the speed of the
other effects first.

■ Try using the chorus effect with the whammy bar
on your guitar or the pitch shift on your keyboard. By
slowly lowering the pitch and at the same time
slowing down the speed of the Rotovibe™, you get
the sound of a tape machine being slowed down. You
can also reverse the effect to get an opposite and
equally dramatic sound.

■ The vibrato effect can be used to give chords a
particularly useful function. Vibrato adds a vocal
quality to all musical instruments. Giving this
important technique to the sound of chords is very
difficult to do manually. The Rotovibe™ enables the
musician to easily do this and thus add an essential
technique to his vocabulary.

DUNLOP MANUFACTURING, INC.

P.O. Box 846 Benicia, CA 94510 U.S.A.

Tel: [phone] Fax: [phone]

ROTOVIBE™

SET-UP INSTRUCTIONS

1. Insert a 9 volt battery and/or plug in AC
Adapter. The Rotovibe™ will operate on either
power source.

Notice: This unit is shipped from the factory without a
battery to prevent possible damage from leakage. A 9­volt transistor radio battery must be installed for
operation if an AC adapter is not going to be used.
The Rotovibe™ operates at a maximum current of
14ma at 9 volts DC under certain operating conditions.
We recommend a high quality alkaline battery. The
adapter jack requires a 5.5/2.1mm coax plug. Most
standard 9V DC AC adapters with greater than 20ma
current capability will work.

Plug Polarity DC in 9 Volts

To install the battery, remove 4 screws from the rubber
feet securing the bottom cover and insert the battery.

2. Run a cord from your instrument to the
Rotovibe's Instrument jack.

3. Run another cord from your amplifier input to
the Rotovibe's Amplifier jack.

4. Turn on the amplifier and begin playing.

5. To turn the pedal on, push the toe of the pedal
all the way down firmly until you feel a "click". To
turn the pedal off, push the toe of the pedal down
again, until you feel another "click". When the pedal
is on, one of the LEDs will pulsate off and on. Red
LED is the Vibrato mode, Green LED is the Chorus
mode. The LED will pulse at the Vibrato and Chorus
rate selected.

When setting up your effects chain,

put the Rotovibe™ at the beginning of your chain.

DUNLOP MANUFACTURING, INC.
P.O. Box 846 Benicia CA 94510 U.S.A.

Tel: [phone] Fax: [phone]

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