User manual ROCKTRON PULSE

[. . . ] 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. Clean with dry cloth Copyright © 2004 GHS Corporation All Rights Reserved. Precautions Continued. . . . Do not block any ventilation openings (if applicable). [. . . ] QUALIFIED PERSONNEL SHOULD SERVICE THIS EQUIPMENT ONLY. DO NOT MAKE ANY INTERNAL ADJUSTMENTS OR ADDITIONS TO THIS EQUIPMENT AT ANY TIME OR TAMPER WITH INTERNAL ELECTRONIC COMPONENTS AT ANY TIME. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY VOID THE WARRANTY OF THIS EQUIPMENT AS WELL AS CAUSING A SHOCK HAZARD. OPERATING 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 1 Speed Control - Adjusts the speed at which the tremolo signal modulates (or increases or decreases in volume). Turning this control clockwise increases the speed. Turning it counter-clockwise decreases the speed. [. . . ] Some battery drain may take place when unit is plugged in (even if the unit is bypassed). 2 3 4 5 6 7 8 9 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. [. . . ]