THAT2180: PCB/panel set for THAT2180-based VCA for Eurorack (5HP)Designed by York Modular in United Kingdom
I've done more than my fair share of lo-fi VCAs in the past, so here's one with a bit more in the way of 'fi'. Unlike some others, this module is built around the THAT2180 Blackmer cell IC - I find...Read More…
I've done more than my fair share of lo-fi VCAs in the past, so here's one with a bit more in the way of 'fi'.
Unlike some others, this module is built around the THAT2180 Blackmer cell IC - I find it easier to use, and less prone to self-destruction, than the V2164.
This is a 100% through-hole build - there are a couple of different versions of the THAT2180 (A and B) but unless you're looking for insanely low levels of THD the C variant gives the best bang for the buck.
In addition there are a pair of signal inputs (unattenuated) and a pair of control-voltage inputs with associated attenuators. Prototype versions of this module had one attenuated and one unattenuated CV channel, but since the 2180 is pretty sensitive where control voltages are concerned I decided to add an attenuator to the second CV channel too - even so, it's possible to get some very cool sounding distortion out of it with the levels turned up.
Panels are laser-cut from 3mm opaque perspex - the supplied panel is 5HP wide. If you'd prefer to fab your own then you can get the design files (FPD and DXF files) from the same repository as the schematic.
BOM, schematic and design files can be found at: https://bitbucket.org/yorkmodular/that2180-vca/src/master/
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