Rocktron Pulse Tremolo User Manual

Your Pulse Tremolo™ pedal has been tested and complies with the following
Standards and Directives as set forth by the European Union:

Council Directive(s): 89/336/EEC Electromagnetic Compatibility
Standard(s): EN55013, EN50082-1

This means that this product has been designed to meet stringent guide­lines on how much RF energy it can emit, and that it should be immune from
other sources of interference when properly used. Improper use of this
equipment could result in increased RF emissions, which may or may not
interfere with other electronic products.

To insure against this possibility, always use good shielded cables for all
audio input and output connections. This will help insure compliance with
the Directive(s).

For more information about other Rocktron products, please see your local
dealer or one of our importers closest to you (listed on the Rocktron website

- www.rocktron.com).

Precautions

Read all instructions contained in this manual.
Keep these instructions
Heed all warnings
Follow all instructions.
Do not use this apparatus near water.
Clean with dry cloth

Copyright © 2004 GHS Corporation
All Rights Reserved.

Precautions Continued....

Do not block any ventilation openings (if applicable). Install in accordance with the
manufacturer’s instructions.
Do not install near any heat sources such as radiators, heat registers, stoves or other
apparatus (including amplifiers) that produce heat.
This product is not equipped with a plug or cable. This pedal runs on a 9 Volt
Battery, if a 9Volt DC adapter is the used please follow adapter manufacturer’s
operation instructions.
Only used attachments/accessories specified by the manufacturer.
Do not use this product with any case, stand tripod, bracket or table that is not
specified by the manufacturer. Insure that the case, stand, tripod, bracket etc. is
properly adjusted and setup (follow all instructions). Extra care and caution should
be taken to avoid tip over and injury.
Unplug this apparatus during lightening storms or when unused during long periods

of time.

Refer all service to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power supply or plug is damaged,
liquid has been spilled or objects have fallen into the apparatus or if the apparatus
has been exposed to rain or moisture, does not operate normally or has been
dropped.

DO NOT ATTEMPT TO SERVICE THIS EQUIPMENT. QUALIFIED PERSON­NEL SHOULD SERVICE THIS EQUIPMENT ONLY. DO NOT MAKE ANY
INTERNAL ADJUSTMENTS OR ADDITIONS TO THIS EQUIPMENT A T ANY
TIME OR T AMPER WITH INTERNAL ELECTRONIC COMPONENTS AT ANY
TIME. FAILURE T O FOLLOW THESE INSTRUCTIONS MA Y VOID THE
WARRANTY OF THIS EQUIPMENT AS WELL AS CAUSING A SHOCK
HAZARD.

OPERA TING TEMPERATURE

Do not expose this unit to excessive heat. This unit is designed to operate between
32 F and 104 F (0 C and 40 C). This unit may not function properly under extreme

temperatures.

Introduction

Congratulations on your purchase of the Rocktron
Pulse Tremolo.

The Pulse Tremolo pedal provides a very economical way to get
that expensive classic tube tremolo sound in a small box. Typical
modern tremolo devices are created electrically using VCAs. The
Pulse creates an amazing tremolo with modulated light and static
light. Yes, you read that correct, we use light to create the tremolo
effect! Using light for creating signal modulation via a photo­resistor, an LED lights up and the photo-resistor changes the
output volume on the Pulse in relationship to the light intensity.
An LFO (low frequency oscillator) pulses the LED at a given rate
and a given wave form, the light travels to the photo-resistor
causing it to change resistance value, which in turn changes the
gain output of the internal amplifier (op amp). The result is a
smooth non-symmetrical tremolo which closely approximates
classic tube tremolo properties. A SPEED control varies the rate
of the tremolo, while an INTENSITY control determines the
amount of the effect. A switch is provided that lets you choose
triangle or square LFO pulse modulation waveforms.

The easy access battery compartment will make changing batteries
during a gig a breeze. We have also equipped it with a super
bright blue LED so you will know when the pedal is on...it is also
just plain cool!

Enjoy

Connection 1

Controls

Controls

Speed Control - Adjusts the speed at which the tremolo signal modulates (or

1

increases or decreases in volume). Turning this control clockwise increases
the speed. Turning it counter-clockwise decreases the speed.

Active LED - When lit the pedal is “active” or “on”

2

Intensity Control - Adjusts the amount of modulation for the tremolo signal.

3

Turning it clockwise increases the depth of tremolo. Turning it counter­clockwise decreases the depth of tremolo. Lower Intensity settings will
produce more subtle tremolo effects, while higher settings will result in a more
extreme tremolo effect.

DC 9V Input - To use external power (not provided) use only a 9-Volt DC

4

adapter

Waveform Select Switch - This switch determines the “waveshape” of the

5

tremolo signal. Selecting a different waveform produces a different tremolo
effect.

6

Input - Using a standard guitar cable with a 1/4” jack, plug your guitar into
this jack.

7

Output Jack - Using a standard guitar cable with a 1/4” jack, connect to your
next effect or directly into your amplifier.

8

On/Off Switch - This switch determines whether the pedal is “on” or “off” ­When ON the blue LED will be lit. When OFF the LED will not be lit.

9

9-Volt Battery Compartment - to access pull on small tab labeled “OPEN”.
Replace with a new 9-Volt battery. Always remember to unplug your guitar
cords from the pedal to conserve battery life. Some battery drain may take
place when unit is plugged in (even if the unit is bypassed).

Specifications

Maximum Input

Input Impedance

Current Consumption

Power Requirements

+4dBu
470K
25mA
DC9V>100mA built-in regulator

* CE Approved *

Hints and Tips:

Tremolo pedals usually sound better when placed after distortion
in the signal chain. However, the Pulse Tremolo can be used either
before or after the distortion. When you put the Pulse before the
distortion you will get a very cool tremolo effect where at first you
will not hear the tremolo effect until the chord or note starts to
decay or sustain...at this point you will start to hear the effect.
When the Pulse is placed after the distortion, when active, you will
hear the tremolo effect without volume ducking artifacts.

If using multiple pedals such as delays and other modulation
effects, try the Pulse Tremolo in different parts of the signal chain
until you find the sound you like best.

If you have an effects loop in your amplifier - try putting the Pulse
in the effects loop for a different sound (please follow all instruc­tions in your amplifier manual when connecting to your effects
loop).

Rocktron Products

Preamps

Gainiac (preamp w/12ax7 tube)
Blue Thunder (bass preamp w/multi-effects)
Chameleon
RepliTone MP(modelling preamp w/multi-effects)
Voodu Valve
Prophesy (our top of the line preamp with multi-effects)
V endetta VP4 Preamp (All Tube 4-Channel Guitar preamp - 2 Rack Space)

Rack Effect Processors

Xpression (multi-effects processor)

Noise Reduction

HUSH Super C (guitar noise silencing system)

HUSH The Pedal

2000 (preamp w/multi-effects)



(preamp w/12ax7 tube and multi-effects)



Power Amplifier for guitar

Velocity 100 (2x50W Stereo Power Amp for Guitar)

Rocktron Products

Distortion/Overdrive Pedals

Silver Dragon Tube Multi-Distortion Pedal
Metal Planet Distortion
Zombie Rectified Distortion
Rampage Distortion
Sonic Glory Overdrive
Austin Gold Overdrive
Nitro T onal Enhancer/Booster

Effect Pedals

Hypnotic Flange
T sunami Chorus
V ertigo V ibe Rotating V ibe Pedal
Short Timer Digital Delay
Big Crush Compressor
Pulse Tr emolo
Nitro T onal Enhancer/Booster
Heart Attack Dynamic Filter

Essential Pedals

HUSH The Pedal
X-T une Chr omatic Tuner
Black Cat Moan Wah Wah
Banshee Talk Box

Rocktron Products

Tube Guitar Amplifiers

Vendetta Head(100 W Head 4-Channels All Tube - MIDI Switchable)
Vendetta Combo (100W 2x12 Combo Celestion 90s all Tube4-Channel MIDI Switchable)

Rampage Guitar Amplifiers

R30RW (30W 1x10 Amp w/built in Digital Recorder)
R80DSP (80W 1x12 Amp w/Digital Effects)
RT80 (80W 1x12 Amp w/Reverb & Built-in Tuner)
R120DSP (120W 2x10 Amp w/Digital Effects)
RT122C (120W 2x12 Amp w/Stereo Chorus, Reverb & Chromatic Tuner)
R50DSP (50 Watt 2x8"Guitar Amp w/Digital Effects)
R50C (50 Watt 2x8"Guitar Amp w/Reverb & Chorus)
R20 (20 Watt 1x8"Amp w/Reverb)
R10 (10 Watt 1x6.5")

Rampage Acoustic Amplifiers

RA50DSP (50W Acoustic Amp w/Digital Effects - Wedge Shape)
RA30DSP (30W Acoustic Amp w/Digital Effects - Wedge Shape)

Rocktron Products

Rampage Bass Amplifiers

RB20 (Bass Amp 20W with 8" Speaker)
RB30 (Basss Amp 30W with 10" Speaker)
RB60 (Bass Amp 60W with 12" Speaker)
RB100 (Bass Amp 100W with 15" Speaker)

Foot Controllers and Accessories:

MIDI Mate (Midi Foot Controller)
MIDI XChange(MIDI Foot Controller)
All Access (Midi Foot Controller )
HEX (Expression Pedal)
RMM900(7-pin Din MIDI Cable)
RM4 (MIDI Controller for Vendetta amps)
RFS1 and RFS2 (Single and Double Latching Footswitchs for Rampage Amps)

Rocktron - A Division of GHS Corporation
2813 Wilber Ave
Battle Creek MI 49015
USA

Rocktron Phone: [phone]
Email: [e-mail]

www.rocktron.com

The Rocktron, Pulse, Pulse Tremolo names and logos, this pedal’s shape, design and

graphics and this manual’s layout, descriptions and designs are TM, C and R -

GHS Corporation, Battle Creek, MI 49015 - - All Rights Reserved

2004-0001
Rev. 02/24/04