From the MOTM website, 950 description:
The MOTM-950 powers BOTH standard modules (+-15V at 400ma) and newer modules
that require +5V (2A output). The internal connector board has 6 MTA-156,
6-position connectors for newer modules and 3 standard MTA-156 4-position
connectors. For example, you can power 3 Cloud Generators, a uSeq and a
MIDI-CV converter plus 3 other modules. Very easy to assemble.
So you could power 9 modules from the 950. +-15 V at 400 mA is enough juice
for 9 modules (MOTM-900 with 800 mA powers 18-22 modules).
My recommendations:
Option A: Get a blank 2U wide rack panel and mount your own larger power
supply behind it with Paul's larger power distribution board. Put this on
the bottom of the SKB popup. This requires some of amount of DIY and power
wiring knowledge (or friendly MOTMer advice). IMO cutting square holes for
power switches and outlets is a royal pain though.
Option B: Sounds like you're building this over a period of time. Get the
MOTM-950, fill up the SKB with 9 modules, then get a second SKB and the
MOTM-900. Use the second SKB/MOTM-900 to power most of the micro-modules
(but no 5V modules), as it handles 15 modules (connector limitation). Don't
think you'll get away with filling just one SKB case. :-)
Your module selection looks good, but I would recommend at least one
MOTM-300 in place of a uVCO for the additional capabilities: sync, linear
FM, sine/triangle wave outputs, pulse width controls.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.comThe Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com > -----Original Message-----
> From: Seth Elgart [mailto:selgart@...]
> Sent: Wednesday, January 07, 2004 11:05 PM
> To: motm@yahoogroups.com
> Subject: [motm] module selection (newbie questions)
>
> Dear List,
>
> I'm new to this and am trying to figure out which modules to start
> out with. I'm going to put them in an SKB popup case as I already
> have one for some Waldorf rack mount synths as well as a matching SKB
> for my mixer.
>
> Option one is to get a bunch of the micro modules and a 950 power
> supply. With this I can do a modular "Minimoog" style arrangement as
> well as use the new 650 MIDI-to-CV module. The problem with this is
> that I don't think the 950 power supply has enough jacks (and maybe
> enough juice) to power 12 "regular" modules plus the 650.
> (390 LFO, 3 x 310 VCO, 890 mixer, 490 VCF, 190 VCA, 2 x 800 ADSR, 101
> Noise/S&H, 820 Lag, 2 x 910 Mult)
>
> Option 2 is to use two power supplies, a 950 and a 900. I don't
> really want to have 6 spaces out of the 20 taken up by power
> supplies, but this way I can power all I'm planning to in the first
> SKB and then expand into the second without buying another power
> module. I can fit 10 micro modules in this option, plus the 650.
> (390 LFO, 3 x 310 VCO, 890 mixer, 490 VCF, 190 VCA, 2 x 800 ADSR, 101
> Noise/S&H, 910 Mult)
>
> Option 3 is to go with the 950 supply but to use the "large" modules
> (like two 300 VCOs and a 320 LFO in place of three 310 VCOs, a 390
> LFO and an 890 mixer). This disadvantage of this is that at least in
> the beginning I have far fewer modules to play with. The advantage, I
> think, is that I have the "good" modules rather than the "lite"
> modules, and that a 950 supply can power the 9 modules as well the
> 650.
> (320 LFO, 2 x 300 VCO, 490 VCF, 190 VCA, 2 x 800 ADSR, 101 Noise/S&H,
> 820 Lag , 910 Mult)
>
> Here are my questions:
>
> A) Can a 950 power supply successfully power this many modules? I
> don't know how many connectors it has or how much power it can
> generate. I know the 900 supply has 12 connectors. Does the 950 have
> 12 "regular" connectors in addition to the new connectors or does it
> sacrifice regulars to make room for new ones? I don't really want to
> put expander power distribution boards into the popup case as there's
> not really a good place to mount them.
>
> B) Are there other options for power? Can I get a 900 and a 950 kit,
> gut them both and then put the parts on a new panel that would go
> under the two rack rail sets? If I had already built 20 modules I
> would probably not think twice about doing this. As I have not yet
> assembled any modules I'm not sure of how difficult or easy this sort
> of custom wiring would be. The huge advantage of this is that I get
> back all the space the two power supplies would take up as well as
> probably being able to power a second SKB and maybe a third.
>
> C) Should I just go ahead and build a 950 supply and not worry about
> this at all until I have enough modules? In other words, I could just
> start building and deal with it in six months or so.
>
> D) A more basic question is whether to build the micro modules or the
> big ones. Will I regret the 310 VCOs in a year and wish I had the 300
> VCOs instead? Are the 320 LFOs unbelievably better than the 390 LFO?
> Should I build a Magic BusĀ instead of the Mults?
>
> Those are some of the things I know I don't know. What also concerns
> me are the things I don't know that I don't know. I'm sure there are
> things I haven't even thought of yet. In reality I suppose I'll just
> get a power supply and a module or two and start off slow and easy. I
> have a funny feeling however that I'm shortly to be addicted to this,
> and hey, it's never too early to plan for that third cabinet. <g>
>
> Sorry about the length of this post. It's just that I have about a
> thousand questions that I can think of and probably a lot more that
> haven't occurred to me yet.
>
> Thanks,
>
> Seth
>
>
>
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/motm/
>
> To unsubscribe from this group, send an email to:
> motm-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to:
> http://docs.yahoo.com/info/terms/
>