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THAT2180-PCB: PCB for THAT2180-based VCA (5HP)
THAT2180-PCB: PCB for THAT2180-based VCA (5HP)
York Modular

THAT2180-PCB: PCB for THAT2180-based VCA (5HP)

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THIS IS A BARE PCB! IT IS UP TO YOU TO SOURCE APPROPRIATE COMPONENTS, BUILD THE MODULE AND FABRICATE A PANEL FOR MOUNTING!

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, with everything included including a THAT2180C IC - 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, so that's what I've included.

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.

You can download the BOM, panel files and schematic from: https://bitbucket.org/yorkmodular/that2180-vca/src/master/