Primitive_Back-500×500Primitive Sch A2




Width 6HP
Depth 32mm (1.25″)
Maximum Input Current (+5V) Not used
Maximum Input Current (+12V) 15mA
Maximum Input Current (-12V) 15mA
Input Impedance >100kΩ
Output Impedance 560Ω

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Product Description

The Primitive is an old fashioned analog ring modulator / waveshaper. It uses transformers and germanium diodes (in the shape of a ring) to multiply the two input signals. This method of mixing results in an output that is comprised of the sum and difference of the two input frequencies. This module is a Eurorack implementation of the innovative work performed by Harald Bode over half a century ago.

Ring Modulation essay by Hugh Davies