RANDOM*SOURCE
RANDOMSOURCE.NET
6
Serge
Slopes (DTG)
DSG Calibration
LEFT SIDE: Use the CYCLE switch to get the left side (= top half of pcb) to cycle on its own - this way you can
directly start calibrating.
RIGHT SIDE: Patch GATE OUT into TRIG IN to start CYCLE mode (acting like an oscillator).
From the original kit instructions:
Turn the RISE and FALL knobs to center position or above. Patch the OUT(put) into an audio mixer or
Output Module to monitor the output. There should be a triangle wave present which can be changed to a
sawtooth wave of lower frequency by turning down either the RISE or FALL knob. The frequency and timbre
will depend upon the settings and the shape as set by the relationship between the Rise and Fall times.
Starting from a middle position, adjust the
OFFSET trimmer
so that the OUTput is in the range of 0V to 5V.
The module will most likely stop cycling towards either end of the trimmer - if this happens, move the trimmer a
bit back towards the center, unplug the patch cord between GATE OUT and TRIG IN and plug it in again - that
should bring the cycle back.
Adjust
LED brightness
according to taste - make sure you don’t turn the brightness up too much (i.e. trimmer
setting shoud be at least 1k unless you use white or blue LEDs).
Using the trimpots on the main pcb the
1V/Oct tracking
can be adjusted. However, be aware that by design
the tracking of this module will not reach the range covered by dedicated oscillators. To adjust the tracking of
the RIGHT side, set the wave to an inverted Sawtooth (negative ramp, Rise is as steep as possible) and calibrate
for the lower range (up to 440Hz).
Power Consumption
DSG mk2:
≈
85mA @ +12V and
≈
65mA @ -12V
(Version 25. September 2017, 9:36 PM)
SERGE Modular by Random*Source. Module and circuit under license from Serge Tcherepnin. All rights reserved.
