A number of the YuSynth modules such as the VCO / VCLFO and Wavefolder require matched signal diodes for best performance. This is relatively easy to do yourself using the diode test function on a meter or if you prefer, you can purchase them from Soundtronics ready matched.
We carry out our diode matching under stable temperature conditions using a meter with a constant current of 100uA (to avoid self heating) and with a resolution of 0.01mV. We match diodes to better than 2mV using these approach which is well inside the 3mV specified for YuSynth modules.
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