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ALM Busy Circuits

Beast’s Chalkboard

Available Immediately
Product number: CV2802

Octave Switcher & Voltage Adder

  • +12V 30mA
    -12V 30mA
    +5V 0mA
    Width 6HP
    Depth 22mm


Octave Switcher & Voltage Adder

‘Beast's Chalkboard' is dual channel stepped voltage source and adder for your eurorack modular synthesizer system. It primarily is intended as a dual octave switcher for VCO's but has many other uses including sequence transposition, FM ratio creation, buffered CV distribution and VCO calibration.

• Dual channel octave switch/voltage adder and source with 1V stepped range of -2 to +2 volts (i.e 5 Octaves)
• wo Buffered outputs and through output per channel
• Top input normalized to bottom. Allows input to be varied across both channel outputs
• Bottom octave switcher can be chained to top extending range to 9 octaves
• Also functions as 1->6 or dual 1->3 buffered mult
• Skiff friendly

In the Box
• The module itself
• Eurorack Power Cable

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