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This is intended to be a resource for doing DIY, repaneling, and/or repairs on 5U systems. At present, some of this information is very difficult to find or otherwise available. With the growth of interest in DIY for both MU and MOTM formats, it seems like an appropriate time to start this, and compile as much information as possible in a single place.
This information is for doing DIY, repaneling, and/or repairs on MU systems. It's not comprehensive, everyone has preferences, but lists the common/major/most-wanted parts in the MU format, and/or what sort of things will work.
== Front panels ==
[[File:MU panel flanges.jpg|thumb|250px|Detail of MU panel showing flanges for stiffening and for mounting.]]
=== Specifications ===
See synthesizers.com:[https://web.archive.org/web/20100104235751/http://synthesizers.com/technical.html#panels Panels]
=== Blank panels ===
The panels are made using 1.5mm (0.062") aluminium, which is thinner than that used for [[MOTM parts#Blank panels|MOTM front panels]]. They're strengthened by the sides being bent over to form flanges. To mount them into the rack, the face of the panel is extended at the top and bottom by 0.4".<ref name="dotcom">[https://web.archive.org/web/20100104235751/http://synthesizers.com/technical.html Technical Information], Synthesizers.com</ref>


If you have any corrections or additions to this list, feel free to make them here, or send a PM to '''diophantine''' on the MuffWiggler forum. I plan to eventually add some HOWTOs, FAQs, pictures, tutorials, and schematics. When I do that, I will likely split this out into multiple pages. For the present, while it is very much a work-in-progress, let's keep this as one page for ease of use & editing.

==Panels/Faceplates==

===MOTM Panels===
====MOTM Panel Specs====
...

====MOTM Blank Panels====
Blank panels can be purchased from:
Blank panels can be purchased from:
* Bridechamber: http://bridechamber.com (1, 2, 3, and 4 U)
* [http://www.lunar-experience.com/ Moon Modular], 1 and 2U
* Synthesis Technology: http://www.synthtech.com (1 and 2 U)
* [http://stgsoundlabs.com/ STG Soundlabs], 1U
* [http://www.synthesizers.com/ Synthesizers.com], 1, 2, 4, and 8U


====MOTM Project Panels====
=== Project panels ===
Panels for specific projects (CGS, I. Fritz, etc.) can be purchased from:
* Bridechamber: http://bridechamber.com

====MOTM Custom Panels====
Custom panels can be manufactured by:
* The Beast: http://www.thebeast.co.uk/cnc/
* Front Panel Express [US]: http://www.frontpanelexpress.com
* Schaeffer [EU]: http://www.schaeffer-ag.de

===MU Panels===
====MU Panel Specs====
Details can be found here: http://www.synthesizers.com/technical.html#panels

====MU Blank Panels====
Blank panels can be purchased from:
* Moon Modular: http://www.lunar-experience.com (1 and 2 U)
* STG Soundlabs: http://stgsoundlabs.com (1U)
* Synthesizers.com: http://www.synthesizers.com (1, 2, 4, and 8 U)

====MU Project Panels====
Panels for specific projects (CGS, YuSynth, etc.) can be purchased from:
Panels for specific projects (CGS, YuSynth, etc.) can be purchased from:
* Big Blue Wave: http://www.bigbluewave.co.uk
* [http://www.bigbluewave.co.uk/resynthesis/resynthesis_home.htm Re:Synthesis]
* Bridechamber: http://bridechamber.com
* [http://bridechamber.com/ Bridechamber]
=== Custom panels ===

====MU Custom Panels====
Custom panels can be manufactured by:
Custom panels can be manufactured by:
* Big Blue Wave: http://www.bigbluewave.co.uk
* [http://www.bigbluewave.co.uk/resynthesis/resynthesis_home.htm Re:Synthesis]
* Front Panel Express [US]: http://www.frontpanelexpress.com
* [http://www.frontpanelexpress.com/ Front Panel Express], USA
* Schaeffer [EU]: http://www.schaeffer-ag.de
* [http://www.schaeffer-ag.de/ Schaeffer], EU
(Note: for FPE/Schaeffer, you need to supply a blank MU panel.)
For FPE and Schaeffer, you need to supply the blank MU panel.


==Panels Parts==
== Panel parts ==
Avoid cheap parts, especially if mechanical. Invest in quality, you always get what you pay for. Otherwise your entire system might later develop intermittent faults.<ref>Mod Wiggler forum:[https://www.modwiggler.com/forum/viewtopic.php?p=861269 On cheap parts...]</ref>

===MOTM Panel Parts===
=== Knobs ===
Dotcom ([http://www.synthesizers.com/ Synthesizers.com]) use fluted dual-dot 1" Moog-style/[[Cosmo Corporation knobs]], available at:

* [http://www.smallbearelec.com/servlet/Detail?no=739 Small Bear]
A very extensive list can be found here:
* [https://web.archive.org/web/20110716181608/http://www.synthesizers.com/cabinets.html#parts Synthesizers.com]
http://www.hotrodmotm.com/parts_list.htm
For pointer knobs, Dotcom use {{sfrac|1|1|8}}" Moog-style/Cosmo Corporation skirted pointer knobs, available at:

* [http://www.smallbearelec.com/servlet/Detail?no=1109 Small Bear]
====MOTM Knobs====
* [https://web.archive.org/web/20110716181608/http://www.synthesizers.com/cabinets.html#parts Synthesizers.com]
MOTM uses ALCO PKES90B1/4 knobs.
=== Potentiometers ===

Synthesizers.com use Alpha single-gang 24&nbsp;mm pots, available at:
Available at:
* Mouser 100K linear [http://uk.mouser.com/Search/Refine.aspx?Keyword=31VA501-F 31VA501-F] and 100K log [http://uk.mouser.com/Search/Refine.aspx?Keyword=31VJ501-F 31VJ501-F]
* Synthesis Technology: http://www.synthtech.com
* [http://www.smallbearelec.com/servlet/Detail?no=9 Small Bear Electronics]

* [https://web.archive.org/web/20110716181608/http://www.synthesizers.com/cabinets.html#parts Synthesizers.com] 100K, 1M
====MOTM Potentiometers====
=== Switches ===
MOTM uses Spectrol 149 pots.
..., available at:

* [https://web.archive.org/web/20110716181608/http://www.synthesizers.com/cabinets.html#parts Synthesizers.com] DPDT, SPDT
Available at:
=== Pushbuttons ===
* Synthesis Technology: http://www.synthtech.com
..., available at:

* [https://web.archive.org/web/20110716181608/http://www.synthesizers.com/cabinets.html#parts Synthesizers.com]
====MOTM Switches====
=== Jacks ===
NKK toggle switches with bat handles are the closest fit. <ref>http://www.hotrodmotm.com/parts_list.htm</ref>
Dotcom modules use enclosed mono [[Switchcraft]]-style jacks, available at:

* [http://www.smallbearelec.com/servlet/Detail?no=90 Small Bear Electronics]
* SPDT: NKK #M2102ES1W01 (Allied: 870-8646)
* [https://web.archive.org/web/20110716181608/http://www.synthesizers.com/cabinets.html#parts Synthesizers.com]
* SPDT center off: NKK #M2103ES1W01 (Allied: 870-8647)
Switched {{sfrac|4}}" jacks are especially handy for [[normalising]] jack connections.
* DPDT: NKK #M2022ES1W01 (Allied: 870-8652)
=== LEDs ===
* DPDT center off: NKK M2023ES1W01 (Allied: 870-8653)

====MOTM Jacks====
MOTM uses Switchcraft 112A 1/4" jacks.

====MOTM LEDs====
MOTM uses 5mm flat-lens LEDs.

* Red: Lumex #SSI-LXH387ID (DigiKey: 67-1155-ND)
* Green: Lumex #SSI-LXH387GD (DigiKey: 67-1156-ND)
* Yellow: Lumex #SSI-LXH387YD (DigiKey: 67-1157-ND)

===MU Panel Parts===
====MU Knobs====
Dotcom uses fluted dual-dot 1" Moog-style knobs.

Available at:
* Small Bear: http://www.smallbearelec.com/Detail.bok?no=739
* Synthesizers.com: http://www.synthesizers.com/cabinets.html#parts

For pointer knobs, Dotcom uses 1.125" Moog-style pointer knobs.

Available at:
* Small Bear: http://www.smallbearelec.com/Detail.bok?no=1109
* Synthesizers.com: http://www.synthesizers.com/cabinets.html#parts

====MU Potentiometers====
Synthesizers.com uses Alpha single-gang 24mm pots.

Available at:
* Mouser:
** 100K Linear - 31VA501-F
** 100K Log - 31VJ501-F
* Small Bear Electronics: http://www.smallbearelec.com/Detail.bok?no=9
* Synthesizers.com: http://www.synthesizers.com/cabinets.html#parts (100K, 1M)

====MU Switches====
...
...
Panel components sold by Synthesizers.com come with 6" wires and [[MTA Connector]] connector.
=== PCB Mounting ===
Synthesizers.com and some independent manufacturers mount the PCB parallel to the panel with [[standoff]]s, others mount PCBs perpendicular MOTM-style. [[PCB mounting bracket|4-40 steel mounting brackets]] are fine for this and also work with [[CGS]] boards.


PCBs can be mounted parallel using 1" (Mouser: 534-8405) and {{sfrac|1|1|4}}" (Mouser: 534-8407) threaded standoff posts. Black oxide screws, like the ones used by Synthesizers.com, are used to affix the standoffs to the front panel. Specifically, 4-40 steel {{sfrac|3|8}}" black oxide phillips pan head screws,<ref name="gf">Guitar Fool:[http://guitarfool.com/modules/hardware.html Hardware]</ref> are available from [http://www.aaronsmachinescrews.com/cfusion/DisplayProduct.cfm?ITEM=1701SN1368 Aaron's Machine Screws].
Available at:
* Synthesizers.com: http://www.synthesizers.com/cabinets.html#parts (DPDT, SPDT)

====MU Pushbuttons====
...

Available at:
* Synthesizers.com: http://www.synthesizers.com/cabinets.html#parts

====MU Jacks====
Dotcom modules use enclosed Switchcraft-style jacks.

Available at:
* Small Bear Electronics: http://www.smallbearelec.com/Detail.bok?no=90
* Synthesizers.com: http://www.synthesizers.com/cabinets.html#parts

Of course, other open-frame 1/4 jacks can be used (and are used by 3rd party manufacturers), and are especially handy for normalizing jack connections.

====MU LEDs====
...

'''Note''': Panel components sold by Synthesizers.com come with 6" wires and MTA connected.

==PCB/Panel Mounting==

===MOTM PCB Mounting===
MOTM PCBs are generally mounted perpendicular to the panel with L-shaped brackets affixed to pots or jacks.

Available at:
* Bridechamber: http://bridechamber.com/Brackets.html
* Synthesis Technology: http://www.synthtech.com (Stooge brackets)

Details on Stooge brackets: http://www.wiseguysynth.com/larry/brackets/modular_brackets.htm

===MU PCB Mounting===
Synthesizers.com and some 3rd party manufacturers mount the PCB parallel to the panel with standoffs. Other 3rd party manufacturers mount PCBs perpendicular MOTM-style. #4-40 mounting hardware is ideal, and works with CGS boards too.

PCBs can be mounted parallel using 1" (Mouser: 534-8405) and 1.25" (Mouser: 534-8407) threaded standoff posts.

Black oxide screws, like the ones used by Synthesizers.com, are used to affix the standoffs to the front panel. Specifically, #4-40 x 3/8" Black oxide phillips pan head screws. <ref>http://guitarfool.com/modules/hardware.html</ref>

Screws available here:
http://www.aaronsmachinescrews.com/cfusion/DisplayProduct.cfm?ITEM=1701SN1368

For perpendicular mounting, brackets as mentioned in the MOTM section can be used, or threaded right-angle brackets (Mouser: 534-621) can be mounted to the panel, using the same screws mentioned above. <ref>http://guitarfool.com/modules/hardware.html</ref>

==Internal Connectors==

===MOTM Connectors===
====MOTM Module Power====
MOTM modules and power distribution boards are connected using 4-pin MTA-156 connectors.

Pinout:
* 1 = +15V
* 2 = GND
* 3 = GND
* 4 = -15V

Female cable mount: 640426-4 (Mouser: 571-640-4264)

Male PCB mount: 640445-4 (Mouser: 571-6404454)

These MTA connectors use 18 awg wire.

===MU Connectors===
Dotcom uses MTA-100 connectors.

MTA-100 connectors use 24 awg wire.

MTA-100 "T"-handle tool: AMP #59803-1 (DigiKey: A9982-ND)

====MU Module Power====
Dotcom modules and power supplies are connected using 6-pin keyed MTA-100 connectors. <ref>http://www.synthesizers.com/technical.html#internaldc</ref>

Pinout:
* 1 = +15v (White)
* 2 = KEY - pin missing and plugged
* 3 = +5v (Red)
* 4 = gnd (Black)
* 5 = -15v (Green)

Female cable mount: AMP #6404416 (Mouser: 571-3-640441-6)

Male PCB mount: AMP #6404566 (Mouser: 571-6404566)

====MU Panel Connectors====
2-pin MTA-100 connectors are used for jacks, push-buttons, and LEDs.

Jack Pinout:
* 1 = Signal (tip)
* 2 = Ground (ring)

Female cable mount: AMP #6404412 (Mouser: 571-3-640441-2)

Male PCB mount: AMP #6404562 (Mouser: 571-6404562)

3-pin MTA-100 connectors are used for switches and pots.<ref>http://www.synthesizers.com/technical.html#internalpot</ref>


For perpendicular mounting with [[stooge brackets]] affixed by the pots or jacks, available at:
Potentiometer Pinout:
* [http://bridechamber.com/Brackets.html Bridechamber]
* 1 = CCW Side
* [https://web.archive.org/web/20180228193533/http://synthcube.com/cart/index.php?route=product%2Fsearch Synthcube]
* 2 = Wiper
Threaded right-angle brackets (Mouser: 534-621) can be mounted to the panel, using the 4-40 steel {{sfrac|3|8}}" black oxide phillips pan head screws.<ref name="gf" />
* 3 = CW Side


== Internal connectors ==
Female cable mount: AMP #6404413 (Mouser: 571-3-640441-3)
Do not mix dissimilar metal terminals and headers. The contact resistance will go up with dissimilar metals, causing all sorts of problems.<ref>[http://www.pinrepair.com/connect/ Molex Connectors Explained, as used in Pinball.]</ref>


Dotcom uses MTA-100 connectors, using 24 awg wire. To fit the wires to the connectors, use the AMP MTA key style maintenance tool: AMP 59803-1 (DigiKey: A9982-ND).
Male PCB mount: AMP #6404563 (Mouser: 571-6404563)
=== Module power ===
Power supplies are connected using 6 way keyed MTA-100 connectors.<ref>[https://web.archive.org/web/20100104235751/http://synthesizers.com/technical.html#internaldc Internal DC Module Power – 6 pin MTA]</ref><ref name="mw1739">[https://www.modwiggler.com/forum/viewtopic.php?t=1739 Power distribution – updated], Mod Wiggler forum, Sep 2008</ref>
{| class="wikitable"
!pin!!Voltage
|-
|1||+15 (white)
|-
|2||key – pin missing and plugged
|-
|3||+5 (red)
|-
|4||GND (black)
|-
|5||-15 (green)
|}
* Female cable mount: AMP 6404416 (Mouser: 571-3-640441-6)
* Male PCB mount: AMP 6404566 (Mouser: 571-6404566)


=== Panel connectors ===
MTA-100 connectors with more pins can be found with similar part numbers.
2-pin MTA-100 connectors are used to connect jacks, push-buttons, and LEDs.
{| class="wikitable"
!pin!!Connection
|-
|1||Signal (tip)
|-
|2||Ground (sleeve)
|}
* Female cable mount: AMP 6404412 (Mouser: 571-3-640441-2)
* Male PCB mount: AMP 6404562 (Mouser: 571-6404562)


3-pin MTA-100 connectors are used for switches and pots.<ref>[https://web.archive.org/web/20100104235751/http://synthesizers.com/technical.html#internalpot Internal Pot/Switch – 3 pin MTA], Synthesizers.com</ref>
==Additional Resources==
{| class="wikitable"
!pin!!Connection
|-
|1||CCW side
|-
|2||Wiper
|-
|3||CW side
|}
CCW means the low (Counter Clockwise) terminal and CW the high terminal.
* Female cable mount: AMP 6404413 (Mouser: 571-3-640441-3)
* Male PCB mount: AMP 6404563 (Mouser: 571-6404563)


===Online resources===
== See also ==
* [[MOTM parts]]
DIY builder sites:
* http://pugix.com/synth/ (MOTM)
* http://guitarfool.com/modules/index.html (MU)
* http://www.dragonflyalley.com/billAndWillMOTMSynth.htm (MOTM)


== References ==
===Muffwiggler threads===
{{From Mod Wiggler Wiki|MU DIY resources}}
... To Be Compiled ...
* [https://www.modwiggler.com/forum/viewtopic.php?t=36380&start=all&postdays=0&postorder=asc The 5U DIY Resource Wiki], Mod Wiggler forum
{{reflist}}


== External links ==
==Notes==
* Synthesizers.com:[https://web.archive.org/web/20100104235751/http://synthesizers.com/technical.html Technical information]
* I'm not wanting to do a list of every possible panel part or knob (everyone has preferences), but to list the common/major/most-wanted parts in these formats, and/or what sort of things will work. I'd love to eventually list the sizes and have templates/sizes for panel design too.
* [http://www.mcmaster.com/#standard-aluminum-sheets/=xe70s0 About Aluminum], McMaster-Carr
=== Schematics, PCB overlays, BOMs and assembly instructions ===
* [http://yusynth.net/index_en.php YuSynth]
* [https://web.archive.org/web/20060111050127/http://www.musicfromouterspace.com/ Music From Outer Space]
* [https://web.archive.org/web/20170430151727/http://cgs.synth.net/ CGS]
=== Lists of preferred parts ===
* [http://www.oakleysound.com/parts.pdf Oakley Sound Systems, Parts Guide]
<!-- Eurorack?
* [https://www.modwiggler.com/forum/viewtopic.php?p=971680 Thread for your component suppliers references...?], Mod Wiggler forum, Oct 2012
* [https://www.modwiggler.com/forum/viewtopic.php?t=86951 SDIY Partslist spreadsheet], Mod Wiggler forum, Jun 2013
* [https://bitbucket.org/cheater/synth-parts cheater/synth-parts], Bitbucket
* [https://github.com/TomWhitwell/MTM-Parts-Library/ Music Thing Modular Eagle Parts Library] -->


[[Category:MU]]
==References==
[[Category:Components]]
{{reflist}} - There is something broken at [[Template:Reflist]]
[[Category:Resources]]
[[Category:Front panels]]

Latest revision as of 18:09, 15 February 2023

This information is for doing DIY, repaneling, and/or repairs on MU systems. It's not comprehensive, everyone has preferences, but lists the common/major/most-wanted parts in the MU format, and/or what sort of things will work.

Front panels

Detail of MU panel showing flanges for stiffening and for mounting.

Specifications

See synthesizers.com:Panels

Blank panels

The panels are made using 1.5mm (0.062") aluminium, which is thinner than that used for MOTM front panels. They're strengthened by the sides being bent over to form flanges. To mount them into the rack, the face of the panel is extended at the top and bottom by 0.4".[1]

Blank panels can be purchased from:

Project panels

Panels for specific projects (CGS, YuSynth, etc.) can be purchased from:

Custom panels

Custom panels can be manufactured by:

For FPE and Schaeffer, you need to supply the blank MU panel.

Panel parts

Avoid cheap parts, especially if mechanical. Invest in quality, you always get what you pay for. Otherwise your entire system might later develop intermittent faults.[2]

Knobs

Dotcom (Synthesizers.com) use fluted dual-dot 1" Moog-style/Cosmo Corporation knobs, available at:

For pointer knobs, Dotcom use 1+1/8" Moog-style/Cosmo Corporation skirted pointer knobs, available at:

Potentiometers

Synthesizers.com use Alpha single-gang 24 mm pots, available at:

Switches

..., available at:

Pushbuttons

..., available at:

Jacks

Dotcom modules use enclosed mono Switchcraft-style jacks, available at:

Switched 1/4" jacks are especially handy for normalising jack connections.

LEDs

... Panel components sold by Synthesizers.com come with 6" wires and MTA Connector connector.

PCB Mounting

Synthesizers.com and some independent manufacturers mount the PCB parallel to the panel with standoffs, others mount PCBs perpendicular MOTM-style. 4-40 steel mounting brackets are fine for this and also work with CGS boards.

PCBs can be mounted parallel using 1" (Mouser: 534-8405) and 1+1/4" (Mouser: 534-8407) threaded standoff posts. Black oxide screws, like the ones used by Synthesizers.com, are used to affix the standoffs to the front panel. Specifically, 4-40 steel 3/8" black oxide phillips pan head screws,[3] are available from Aaron's Machine Screws.

For perpendicular mounting with stooge brackets affixed by the pots or jacks, available at:

Threaded right-angle brackets (Mouser: 534-621) can be mounted to the panel, using the 4-40 steel 3/8" black oxide phillips pan head screws.[3]

Internal connectors

Do not mix dissimilar metal terminals and headers. The contact resistance will go up with dissimilar metals, causing all sorts of problems.[4]

Dotcom uses MTA-100 connectors, using 24 awg wire. To fit the wires to the connectors, use the AMP MTA key style maintenance tool: AMP 59803-1 (DigiKey: A9982-ND).

Module power

Power supplies are connected using 6 way keyed MTA-100 connectors.[5][6]

pin Voltage
1 +15 (white)
2 key – pin missing and plugged
3 +5 (red)
4 GND (black)
5 -15 (green)
  • Female cable mount: AMP 6404416 (Mouser: 571-3-640441-6)
  • Male PCB mount: AMP 6404566 (Mouser: 571-6404566)

Panel connectors

2-pin MTA-100 connectors are used to connect jacks, push-buttons, and LEDs.

pin Connection
1 Signal (tip)
2 Ground (sleeve)
  • Female cable mount: AMP 6404412 (Mouser: 571-3-640441-2)
  • Male PCB mount: AMP 6404562 (Mouser: 571-6404562)

3-pin MTA-100 connectors are used for switches and pots.[7]

pin Connection
1 CCW side
2 Wiper
3 CW side

CCW means the low (Counter Clockwise) terminal and CW the high terminal.

  • Female cable mount: AMP 6404413 (Mouser: 571-3-640441-3)
  • Male PCB mount: AMP 6404563 (Mouser: 571-6404563)

See also

References

This page uses Creative Commons Licensed content from Mod Wiggler Wiki:MU DIY resources (View authors).

  1. ^ Technical Information, Synthesizers.com
  2. ^ Mod Wiggler forum:On cheap parts...
  3. ^ a b Guitar Fool:Hardware
  4. ^ Molex Connectors Explained, as used in Pinball.
  5. ^ Internal DC Module Power – 6 pin MTA
  6. ^ Power distribution – updated, Mod Wiggler forum, Sep 2008
  7. ^ Internal Pot/Switch – 3 pin MTA, Synthesizers.com

External links

Schematics, PCB overlays, BOMs and assembly instructions

Lists of preferred parts

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