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SKU: vpme -.T43 Maker: Types: , ,


Precision Voltage Adder / 43 Halftone Transposition Unit

the SUM output gives the sum of CV inputs A and B and can add or subtract CV input C. the switches allow to add or subtract 1, 2, 4, 12 or 24 semitones so a total of 43 semitones or 3.5 octaves can be added or subtracted from the CV sum.

e.g to add a fourth (5 semitones) use switches +1 and +4, to add a minor seventh (10 semitones) use switches +1 oct and -2

T43 uses precision opamps and voltage references in order to give you perfect tuning across the whole transposition range

T43 on ModularGrid

T43 User Manual


  • power: 20 mA +12V, 10 mA -12V, 0 mA 5V
  • depth: 20 mm deep
  • width: 4HP