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Discussion about the Korg PolySix synthesizer

Archive for polysix.

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Message

Tunning

2018-04-13 by DAVID DEMONTIS

Hi all

Great group.
I`m well into a resto of my Polysix.
I`ve fitted a KiwiSix board and psu.
I have replaced the paired transitor
with a 2SC1583  45G.
I`ve replaced the opto coupler with a VTL5C9
and I`ve replaced the three ICs 17.18 and 19.
When measuring IC18 pin7 to TP5 I`m still
getting -13v.
Any suggestion on what to change next would
be much appreciated.

Many Thanks

Dave

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