Attenuverter (Pre-order)

Assembled product.

This is Mutant Modular attenuverter for eurorack synthesizers.
CV/audio utility to manipulate, invert, attenuate input signals.
Channel 1 is controled with ATV1 also with OFS1 have DC offset control of  +/-6V adding to OUT1.
If nothing is conected to IN1 you can use OUT1 with OFS1 as a manual DC source.
Channel 2 in controled with ATV2.

Gain:
Channel 1 have gain of 2 on positive pole and 1 on inverse pole.
Channel 2 have gain of 1 on each pole.

VIDEO

-Width: 2HP
-Depth: 45mm
-Consumption : +12V : 5mA // -12V : 5mA

NOTE: All assembled products have been calibrated. Over time It could change.
Easy Calibration process:
*Cal offset1: No input connected on IN1. OFS1 pot must be on center position, tweak trim3 and measure on OUT1 untill the output is 0V.
*Cal ATVT1: Place ATV1 on center position. Place an LFO (5-20Hz should be fine) on IN1 and OUT1 patch to an CV in VCO and monitor the VCO out. If the VCO sounds like a vibrato you shoud calibrate this channel. Now tweak TRV1 slowly until the vibrato diapears.
*Cal ATVT2: Place ATV2 on center position. Place an LFO (5-20Hz should be fine) on IN2 and OUT2 patch to an CV in VCO and monitor the VCO out. If the VCO sounds like a vibrato you shoud calibrate this channel. Now tweak TRV2 slowly until the vibrato disapears.