David Rolo TWIN PEAKS TREMOLO, Руководство по сборке

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Controls:
Rotating from CCW to CW, the rotary switch selects the tremolo modes:

Bass and treble modulated in phase (normal tremolo)

Bass and treble modulated out of phase (Harmonic tremolo)

Bass modulation only, with fix treble

Treble modulation only, with fix bass
Pots :

Tone : adjusts the balance between the bass and treble portions. Turn it fully CCW and only the bass
comes out. Turn it fully CW and you get only treble. In the middle you get both. If you turn down the
depth completely you can use the tone knob as a sort of EQ

Depth : Allows setting the depth of the modulation

Rate : Sets the speed of the modulation

Symmetry : Allows changing the ratio between the upper and lower wave of the LFO signal For
example, when using the square wave, you can set whether the “off” or the “on” periods are the
longest.
This diagram shows the effect of the symmetry pot on some wave shapes:
Source:
http://www.electricdruid.net/datasheets/TAPLFO2Datasheet.pdf

Shape : This knob allows selecting one of the 8 available modulation wave shapes:
Source:
http://www.electricdruid.net/datasheets/TAPLFO2Datasheet.pdf