Frequency Central System X Filter

10HP Eurorack DIY synth kit

NOW OBSOLETE! LAST OF THE KITS AVAILABLE HERE. 

The classic Roland 100M VCF redesigned to use 2 x LM13700. The LM13700’s internal buffers are not used, instead FETs are used as per Roland. Project includes the addition of 12dB/oct output and instructions for how to achieve highpass and bandpass in addition to the stock 24dB/oct lowpass.

Documentation here: System X Filter