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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:[http://www.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 DIY parts#
Blank panels can be purchased from:
* [http://www.lunar-experience.com/ Moon Modular], 1 and 2U
* [http://stgsoundlabs.com/ STG Soundlabs], 1U
* [http://www.synthesizers.com/ Synthesizers.com], 1, 2, 4, and 8U
=== Project panels ===
Panels for specific projects (CGS, YuSynth, etc.) can be purchased from:
* [http://www.bigbluewave.co.uk/resynthesis/resynthesis_home.htm Re:Synthesis]
* [http://bridechamber.com/ Bridechamber]
=== Custom panels ===
Custom panels can be manufactured by:
* [http://www.bigbluewave.co.uk/resynthesis/resynthesis_home.htm Re:Synthesis]
* [http://www.frontpanelexpress.com/ Front Panel Express], USA
* [http://www.schaeffer-ag.de/ Schaeffer], EU
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.<ref>Muff Wiggler forum:[http://www.muffwiggler.com/forum/viewtopic.php?p=861269 On cheap parts...]</ref>
=== 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]
* [http://www.synthesizers.com/cabinets.html#parts Synthesizers.com]
For pointer knobs, Dotcom use 1.125" Moog-style/Cosmo Corporation skirted pointer knobs, available at:
* [http://www.smallbearelec.com/servlet/Detail?no=1109 Small Bear]
* [http://www.synthesizers.com/cabinets.html#parts Synthesizers.com]
=== Potentiometers ===
Synthesizers.com use Alpha single-gang
* 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]
* [http://www.smallbearelec.com/servlet/Detail?no=9 Small Bear Electronics]
* [http://www.synthesizers.com/cabinets.html#parts Synthesizers.com] 100K, 1M
=== Switches ===
..., available at:
* [http://www.synthesizers.com/cabinets.html#parts Synthesizers.com] DPDT, SPDT
=== Pushbuttons ===
..., available at:
* [http://www.synthesizers.com/cabinets.html#parts Synthesizers.com]
=== Jacks ===
Dotcom modules use enclosed mono [[Switchcraft]]-style jacks, available at:
* [http://www.smallbearelec.com/servlet/Detail?no=90 Small Bear Electronics]
* [http://www.synthesizers.com/cabinets.html#parts Synthesizers.com]
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.
=== 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
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 steel 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].
For perpendicular mounting with [[stooge brackets]] affixed by the pots or jacks, available at:
* [http://bridechamber.com/Brackets.html Bridechamber]
* [http://synthcube.com/cart/index.php?route=product/search&filter_name=bracket Synthcube]
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.<ref name="gf" />
== Internal connectors ==
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).
=== Module power ===
Power supplies are connected using 6 way keyed MTA-100 connectors.<ref>http://www.synthesizers.com/technical.html#internaldc Internal DC Module Power
{| class="wikitable"
!pin!!Voltage
Line 72:
|1||+15 (white)
|-
|2||key
|-
|3||+5 (red)
Line 80:
|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.
{| class="wikitable"
Line 92:
|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>www.synthesizers.com:[http://www.synthesizers.com/technical.html#internalpot Internal Pot/Switch
{| class="wikitable"
!pin!!Connection
Line 106:
|}
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)
{{From Muff Wiggler wiki|MU DIY resources}}
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* [[MOTM DIY parts]]
== References ==
{{reflist}}
* [http://www.muffwiggler.com/forum/viewtopic.php?t=36380&start=all&postdays=0&postorder=asc The 5U DIY Resource Wiki], Muff Wiggler forum
== External links ==
* Synthesizers.com:[http://www.synthesizers.com/technical.html Technical information]
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