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Modified the 50 Ohm resistor to 47 Ohm due to availability. This shou…
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…ld have no effect on the synthesis. Routed signals for sub oscillator selection.
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jostsalathe committed Aug 29, 2021
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8 changes: 4 additions & 4 deletions README.md
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Expand Up @@ -4,7 +4,7 @@ An extreme MONOTRON mod by Soul Machine in form of an SMD PCB.



## Roots
## credits

The schematics design and build instructions were published by Soul Machine on his project page
[Far Beyond Perception Instruments](https://www.djsoulmachine.com/farbeyondperception/msx.html)
Expand All @@ -13,12 +13,12 @@ and as

He built it with a lot of perf board and freehand wiring.

Also special thanks to Heiner Büge who convinced me to build this mod with him. He also brought a lot of knowledge about analog synthesizers into this project and I would **not** have been able to develop this project without him!


## Where this project takes over

This project aims to take that design and develop a neat printed circuit board with SMD components where sensible so that it can be produced and to a large degree even be assembled by cheap manufacturers like [JLCPCB](jlcpcb.com) or [PCBWay](pcbway.com).

This project aims to take the design of Soul Machine and develop a neat printed circuit board with SMD components where sensible so that it can be produced and to a large degree even be assembled by cheap manufacturers like [JLCPCB](jlcpcb.com) or [PCBWay](pcbway.com).


## Parts
Expand Down Expand Up @@ -48,7 +48,7 @@ Most capacitors are cermaic 0805. 100uF (10V) and 47uF (6V3) use 1206 package in
| 10k | 22 | R201, R202, R417, R501, R505-R507, R509, R510, R512, R513, R515, R516, R518, R519, R521, R522, R524, R604, R607, R608, R610 | C17414 |
| 100k | 43 | R301-R305, R307, R309-R312, R318, R324-R331, R401, R402, R404, R406-R413, R420, R421, R502, R602, R609, R612-R614, R616, R701-R703, R706 | ***C149504*** |
| 33k | 1 | R306 | C17633 |
| 50 | 1 | R308 | ***C131893*** |
| 47 | 1 | R308 | C17714 |
| 5k6 | 2 | R313, R321 | C4382 |
| 4k7 | 1 | R314 | C17673 |
| 1M | 4 | R315, R322, R403, R503 | C17514 |
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4 changes: 2 additions & 2 deletions pcb/adsr.sch
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Expand Up @@ -5,11 +5,11 @@ $Descr A4 11693 8268
encoding utf-8
Sheet 5 7
Title "Korg MS-X"
Date "2021-08-23"
Date "2021-08-29"
Rev "Rev. A"
Comp "Jost Salathé"
Comment1 "Schematics developed by Soul Machine (djsoulmachine.com)"
Comment2 ""
Comment2 "consulted by Heiner Büge"
Comment3 ""
Comment4 ""
$EndDescr
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4 changes: 2 additions & 2 deletions pcb/cv_gate.sch
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Expand Up @@ -5,11 +5,11 @@ $Descr A4 11693 8268
encoding utf-8
Sheet 6 7
Title "Korg MS-X"
Date "2021-08-23"
Date "2021-08-29"
Rev "Rev. A"
Comp "Jost Salathé"
Comment1 "Schematics developed by Soul Machine (djsoulmachine.com)"
Comment2 ""
Comment2 "consulted by Heiner Büge"
Comment3 ""
Comment4 ""
$EndDescr
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4 changes: 2 additions & 2 deletions pcb/lfo.sch
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Expand Up @@ -5,11 +5,11 @@ $Descr A4 11693 8268
encoding utf-8
Sheet 4 7
Title "Korg MS-X"
Date "2021-08-23"
Date "2021-08-29"
Rev "Rev. A"
Comp "Jost Salathé"
Comment1 "Schematics developed by Soul Machine (djsoulmachine.com)"
Comment2 ""
Comment2 "consulted by Heiner Büge"
Comment3 ""
Comment4 ""
$EndDescr
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4 changes: 2 additions & 2 deletions pcb/pcb.sch
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Expand Up @@ -5,11 +5,11 @@ $Descr A4 11693 8268
encoding utf-8
Sheet 1 7
Title "Korg MS-X"
Date "2021-08-23"
Date "2021-08-29"
Rev "Rev. A"
Comp "Jost Salathé"
Comment1 "Schematics developed by Soul Machine (djsoulmachine.com)"
Comment2 ""
Comment2 "consulted by Heiner Büge"
Comment3 ""
Comment4 ""
$EndDescr
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4 changes: 2 additions & 2 deletions pcb/power.sch
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Expand Up @@ -5,11 +5,11 @@ $Descr A4 11693 8268
encoding utf-8
Sheet 2 7
Title "Korg MS-X"
Date "2021-08-23"
Date "2021-08-29"
Rev "Rev. A"
Comp "Jost Salathé"
Comment1 "Schematics developed by Soul Machine (djsoulmachine.com)"
Comment2 ""
Comment2 "consulted by Heiner Büge"
Comment3 ""
Comment4 ""
$EndDescr
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