Doepfer A-137 II

Module A-137-2 is another version of a wave multiplier. In contrast to the A-137-1 Wavemultiplier I the A-137-2 generates four phase-shifted copies of a VCO signal applied to the audio input.

The four shifted signals are added to the original signal to obtain a fat sound similar to five independent VCOs.

The phase shifting is made by a simple circuit that works only for sloped signals like sawtooth, triangle or sine, but not for rectangles or pulses.

Features :

• CV1 input
• CV2 input
• CV3 input
• CV4 input
• Audio input
• Audio output
• 50mm deep
• 14hp