<Add documentation and PDF files for those interested in such details> 

I think this cabinet looks rather nice ... but I am indebted to fellow MOTMer Joseph Casbarian for his *significant* contributions.  I decided the cabinet would have three shelves and be 13U wide.  I liked the look of an Oak finish.  Joseph did everything else on the cabinet construction and finishing.  Mostly, I watched the artistic hands do what I could not.

Here is a shot of my main cabinet with wiring barely started.  The MOTM-900 power distribution boards are in place, one per shelf.  They are "star" wired to the two Cinch screw terminal blocks via #14 AWG wire.

This is a bit unusual... there are two custom auxiliary power supplies pictured below.  They have blue case toroidal transformers to minimize hum generation.  The L/H power supply generates +/- 15V at about a quarter ampere.  Both rails are adjustable by the blue pots you can barely see.  My RFE-901 power control panel (synth front, not shown) has a stereo headphone amplifier on it.  I did not want to contaminate the power for the synth modules with highly varying current demands of a headphone amplifier.  Therefore, a separate power supply just for the headphone amplifier was in order.  (Yes, I am crazy.)  The other custom power supply is a +5V at one ampere supply.  It has two purposes.  Primarily, it supplies the current required by the solid-state relay that controls the Power-One power supply (the big honker, not yet installed).  It also can supply +5V to other digital circuits for a small number of modules that need a dedicated +5V source.  And to prove I am really crazy, the +5V supply also has a PIC processor used to debounce the POWER pushbutton on the front panel.  This +5V supply is "always on".

This next shot is the Power-One power supply during the wiring process.  The red rectangular block is the solid-state relay that is controlled by the PIC processor on the auxiliary +5V supply.  The solid-state relay controls the AC mains voltage for the Power-One.  The idea was to keep AC mains control on the front panel of the synth without actually bringing AC mains voltage to the front panel itself.  (Can you say "safety"?)  Above the transformer but obscured by the yellow and purple wire is a small circuit board.  This is the overvoltage protector.  If the output differential voltage of the Power-One exceeds 33V, an SCR is triggered and shorts out the power supply.  That way, excessive voltage will not be sent to the expensive synth modules even if the power supply becomes unruly.

Here is a picture of the wired cabinet but still missing the back panel.  The power supply is a Power-One 5 ampere model fitted with the optional overvoltage protector.  This synth stuff is pretty expensive, so I figured "what's another twenty bucks for protection against a power supply gone mad?"  Cheap insurance, me thinks.  (Since I have mentioned overvoltage protection twice now, you can assume that I am pretty sold on having such a beast.)

The holes at the bottom of the cabinet have threaded brass inserts tapped for #8 machine screws.  This makes it easy to install or remove the whole back panel for servicing.

The cabinet is rather deep ... excessively so.  I did that because I could not foresee other things I might want to install into the cabinet in the future.  By having the depth, I can accommodate most any device I could dream up.

This next picture is the back of the cabinet which is now complete.  I cut two rectangular vent holes to allow convection cooling for the power supply.  I do not expect there to be much heat generated but wanted to cover all the bases.  On the upper portion of the black back are two knobs.  Next to them (but internal to the cabinet) are magnetic latches which keep the back panel closed but provides tool-less access to the innards when needed.  I must confess that I was a bit surprised just how much this unit weighs.

POWER SUPPLY PARTS AVAILABILITY

For those interested, the actual power supply is a Power-One model HDD15-5-A and is DigiKey stock number 179-2078-ND at $136.00 each in single quantities.  It provides +/- 15VDC at 5 amperes of current.  When loafing, the supply gets only very slightly warm.  For example, all of the modules in this cabinet have been powered for days just so I could check out the temperature rise.  The heat produced was barely noticeable.

The overvoltage protector is Power-One model OVP-24 and is DigiKey stock number 179-2058-ND at $16.25 each in single quantities.  Please note that the OVP-24 is specific for this size supply.  There are smaller (and less expensive) models for power supplies of lower amperage capacity.