MATRIXSYNTH: BEFACO BF-20 KORG MS-20 Filter Clone


Tuesday, June 21, 2011

BEFACO BF-20 KORG MS-20 Filter Clone

"Introducing the BF 20V

Two weeks ago, at our workshop in Barcelona, we started assembling the first units of our latest module: a very faithful replica of the legendary LP/HP filter of the MS 20.

The most demanding part of the design was reproducing the Korg 35, a dedicated IC found at the heart of the original filter. To be able to clone the filter, we first had to clone the IC! It consists of a mini PCB, so small we had to use SMD components for the first time (the people that attended our workshop had a blast! ;-) )

The clone of the chip is 100% compatible with the original filter, so it can be used as a part for repairing real MS-20′s!"

More details and pics at BEFACO

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