Celestial Effects VIRGO Rock Overdrive Owner's Manual - Page 2

Browse online or download pdf Owner's Manual for Music Pedal Celestial Effects VIRGO Rock Overdrive. Celestial Effects VIRGO Rock Overdrive 2 pages. Dual opamp based overdrive circuit

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VOLUME:

This knob controls the overall volume of the effect when the pedal is in use (not bypassed & LED is ON)

TONE:

This knob controls a parallel high frequency roll off circuit. Turning the knob fully clockwise will

allow all frequencies to pass. Turning the knob counter-clockwise will roll off the treble

frequencies. The adjustment is intentionally subtle.

GAIN:

This knob controls the gain of the amplifier section. Turning the knob clockwise will yield higher

gains.

EDGE:

This knob controls is essentially a second order gain control of the amplifier section but also greatly

effects the edge or attach of the signal. Turning the knob clockwise will yield an edgier or more biting

sound and higher gain. Rolling the control counterclockwise will smooth out the "edge"

or attack and also reduce the gain. It also creates a pseudo compression effect to the tone.

SWITCH:

The three position switch on the front panel allows you to select the clipping diode arrangement

after the amplifier section. The changes in tone is more subtle than in our Capricorn and Taurus

pedals.

SWITCH SET TO THE LEFT:

Puts in circuit two symmetrical Silicon diodes.

These diodes produce a more compressed tone.

SWITCH SET TO THE RIGHT:

Puts in circuit Asymmetrical MOSFET and Germanium diode mix.

These MOSFETS/Germanium mix produce a slightly louder and more biting and slightly

compressed tone than the Silicon rectifier diodes.

SWITCH SET IN THE MIDDLE:

Removes all diodes from the circuit.

This yields a louder, more open and vocal tone.

SPECIFICATIONS:

True Bypass Switching

Input impedance: 500K Ohm

Output impedance: 10K Ohm

Current Draw:

Approximately 30 mA at full ON

Max Gain:

Approximately 15.5 dB of gain

POWER REQUIREMENTS:

Internal 9 Volt battery (not included) or any HIGH QUALITY 9 VDC regulated power adapter with a 2.11mm x

5.5mm barrel plug type connector which utilizes a "Center Negative" pin configuration as per the above diagram.

Celestial Effects recommends the Carl Martin Powerjack 9VDC power supply or similar. This power supply is capable

of providing 1000 mA of power and is noise free. The more the capacity of the power supply, the less chance of noise

and hum due to a power supply being pushed to its current capability limits.

Your Celestial Effects purchase is covered under our

CONTROLS

5 YEAR WARRANTY.

See our website for details.