MATRIXSYNTH: Inside a Moog Minitaur


Saturday, August 04, 2012

Inside a Moog Minitaur

via Till Kopper's website where you'll find additional info and pics.

"There are two funny additions seen on the board:

1) There is a tiny ladder printed on the board next to the SMD components that build up the transistor ladder filter.

C129, C132, C148 and C149 are the capacitors of the filter. The original Moog Taurus used a transistor array chip CA3045 for the top and bottom transistor pair. The Voyager uses a CA3086 transistor array for all 5 pairs of transistors of the filter ladder. On the Minitaur they (Q15, Q16, Q19, Q20 and Q22) are discrete transistor pairs.

The Moog Taurus III uses through-hole capacitors (C103-C105) for the filter ladder. And SMD transistor pairs (Q06-Q10). So the Minitaur filter is not exactly the same as on the Taurus III. But who cares, if the sound is right.

2) At about the middle of the board, there is the inscription "ENTER THE LABYRINTH ..." printed on the board. This is referring to the Greek mythology of the Minotaur. -> http://en.wikipedia.org/wiki/Minotaur"

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