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Portable power

Portable power

2008-08-19 by Paul Schreiber

a) I have never seen a +-15V regulated wall wart. I have seen +-12V (they
use a 5-pin DIN, a la MIDI). But this will not work with MOTM.

b) your best bet is to get a 5U tall case, put a MOTM-900 in there, and
leave it. Then, when needed, remove modules from
the studio and place in there.

Paul S.

Re: [motm] Portable power

2008-08-19 by Jonathan Snipes

What about the Dotcom QPS2:


could easily switch out the power connectors with the MTA 156 ...

-j

On Aug 19, 2008, at 9:49 AM, Paul Schreiber wrote:

a) I have never seen a +-15V regulated wall wart. I have seen +-12V (they
use a 5-pin DIN, a la MIDI). But this will not work with MOTM.

b) your best bet is to get a 5U tall case, put a MOTM-900 in there, and
leave it. Then, when needed, remove modules from
the studio and place in there.

Paul S.


Re: [motm] Portable power

2008-08-19 by Matthew Hiscock

I was thinking of that. I wondered if Dotcom just gets some power supplies from Mouser and cuts off the connectors and puts on their own connectors.

In which case, it'd be cheaper to order directly from Mouser and just slap in my own MTA156s. Or - and stop me if this is crazy-talk - screw-down posts instead.

A MOTM900 would be much larger than what I'm thinking. I want something *smaller and lighter* than my current setup.

On 19-Aug-08, at 12:59 PM, Jonathan Snipes wrote:

What about the Dotcom QPS2:


could easily switch out the power connectors with the MTA 156 ...

-j

On Aug 19, 2008, at 9:49 AM, Paul Schreiber wrote:

a) I have never seen a +-15V regulated wall wart. I have seen +-12V (they
use a 5-pin DIN, a la MIDI). But this will not work with MOTM.

b) your best bet is to get a 5U tall case, put a MOTM-900 in there, and
leave it. Then, when needed, remove modules from
the studio and place in there.

Paul S.



__________________________________________________
site: http://www.bodega-audio.com
label myspace: http://www.myspace.com/bodegaaudio
dj/prod. myspace: http://www.myspace.com/fateastcoast

Re: [motm] Portable power

2008-08-19 by Matthew Hiscock

Perhaps this would do the trick?


Cheap, 240ma, +/-15v - I'd just have to deal with the 5-pin DIN in some way....

On 19-Aug-08, at 12:59 PM, Jonathan Snipes wrote:

What about the Dotcom QPS2:


could easily switch out the power connectors with the MTA 156 ...

-j

On Aug 19, 2008, at 9:49 AM, Paul Schreiber wrote:

a) I have never seen a +-15V regulated wall wart. I have seen +-12V (they
use a 5-pin DIN, a la MIDI). But this will not work with MOTM.

b) your best bet is to get a 5U tall case, put a MOTM-900 in there, and
leave it. Then, when needed, remove modules from
the studio and place in there.

Paul S.



__________________________________________________
site: http://www.bodega-audio.com
label myspace: http://www.myspace.com/bodegaaudio
dj/prod. myspace: http://www.myspace.com/fateastcoast

Re: [motm] Portable power

2008-08-20 by Stephen Drake

Or there's always the extreme diy approach -
http://www.musicfromouterspace.com/analogsynth/WALLWARTSUPPLY/WALLWARTSUPPLY.php
This with one of Paul's distribution boards and you'd be in business.
Personally I'd rather be using Paul's 900 hardware than this however.

On Tue, Aug 19, 2008 at 12:19 PM, Matthew Hiscock <audio@...> wrote:

Perhaps this would do the trick?


Cheap, 240ma, +/-15v - I'd just have to deal with the 5-pin DIN in some way....

On 19-Aug-08, at 12:59 PM, Jonathan Snipes wrote:

What about the Dotcom QPS2:


could easily switch out the power connectors with the MTA 156 ...

-j

On Aug 19, 2008, at 9:49 AM, Paul Schreiber wrote:

a) I have never seen a +-15V regulated wall wart. I have seen +-12V (they
use a 5-pin DIN, a la MIDI). But this will not work with MOTM.

b) your best bet is to get a 5U tall case, put a MOTM-900 in there, and
leave it. Then, when needed, remove modules from
the studio and place in there.

Paul S.



__________________________________________________


--
------------------------------------------------------------------
Stephen Drake
sduck409@...
makeme1witheverything@...

RE: [motm] Portable power

2008-08-20 by John L Rice

The smallest PowerOne that ‘should’ work is only about $50 (US$) as long as you need less than 400mA:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=179-2306-ND

Also, some very helpful related info here from Richard Brewster:

http://pugix.com/synth/portable-rack-cabinets/

Best of luck!

John L Rice

PS – PLEASE understand, fear and respect AC current before attempting DIY power projects! Death awaits just a tiny stupid mistake away. (I’ve been REALLY lucky at least three times in my life . . . and I’m not generally stupid . . . unless it comes to credit cards . . .and especially women! ;-)

From: motm@yahoogroups.com [mailto:motm@yahoogroups.com] On Behalf Of Stephen Drake
Sent: Tuesday, August 19, 2008 7:06 PM
To: MOTM List
Subject: Re: [motm] Portable power

Or there's always the extreme diy approach -
http://www.musicfromouterspace.com/analogsynth/WALLWARTSUPPLY/WALLWARTSUPPLY.php
This with one of Paul's distribution boards and you'd be in business.
Personally I'd rather be using Paul's 900 hardware than this however.

On Tue, Aug 19, 2008 at 12:19 PM, Matthew Hiscock <audio@...> wrote:

Perhaps this would do the trick?

Cheap, 240ma, +/-15v - I'd just have to deal with the 5-pin DIN in some way....

On 19-Aug-08, at 12:59 PM, Jonathan Snipes wrote:

What about the Dotcom QPS2:

could easily switch out the power connectors with the MTA 156 ...

-j

On Aug 19, 2008, at 9:49 AM, Paul Schreiber wrote:



a) I have never seen a +-15V regulated wall wart. I have seen +-12V (they
use a 5-pin DIN, a la MIDI). But this will not work with MOTM.

b) your best bet is to get a 5U tall case, put a MOTM-900 in there, and
leave it. Then, when needed, remove modules from
the studio and place in there.

Paul S.



__________________________________________________



--
------------------------------------------------------------------
Stephen Drake
sduck409@...
makeme1witheverything@...

Re: [motm] Portable power

2008-08-20 by Matthew Hiscock

On 19-Aug-08, at 11:11 PM, John L Rice wrote:

PS – PLEASE understand, fear and respect AC current before attempting DIY power projects! Death awaits just a tiny stupid mistake away. (I’ve been REALLY lucky at least three times in my life . . . and I’m not generally stupid . . . unless it comes to credit cards . . .and especially women! ;-)

For that very reason I'm going to avoid the totally DIY approach (cool though it is!) and try that Elpac wall-wart. At least that way the worst I could do would be to take the wrong 15v lead from the DIN plug, instead of giving the household AC a new route (ie. my body) to travel.

If someone forsees a specific problem with the Elpac, let me know. Otherwise I'll give that a shot and report back my findings.

Matthew

Re: [motm] Portable power

2008-08-20 by Andre Majorel

On 2008-08-19 13:13 -0400, Matthew Hiscock wrote:

> A MOTM900 would be much larger than what I'm thinking. I want
> something *smaller and lighter* than my current setup.

Switching power supplies are unbeatable for size and weight.

They tend to be noisier than linear power supplies, but will the
effect on your MOTM modules be large enough to be noticeable on
stage ?

--
André Majorel <URL:http://www.teaser.fr/~amajorel/>
Do not use this account for regular correspondence.
See the URL above for contact information.

410 clicking in band 1.

2008-10-14 by Matthew Hiscock

Hi all,

I'm finding a clicking in the outputs of band 1 of my motm410. It
clicks at the same rate as the built-in LFO, when it hits the low and
high point of its cycle. I get it in Out 1 and Mix Out but not Outs 2
& 3.

It might have always been there, but recently I've started using that
filter to process guitar, so the signal is rarely the full 5v, and
there's no envelope shutting off the output when I'm not playing.
When I put a full 5v osc. signal through, I don't hear the clicking
at all. Probably still there but to far below the level of the signal
to be audible.

Do other people find this? I'm wondering if this is just a
consequence of the filter design, or is there something wacky with
mine specifically?

thanks,
Matthew

Re: [motm] 410 clicking in band 1.

2008-10-15 by Paul Schreiber

Something is wrong, I have never heard of this in 8 years for shipping this
module.

Paul S.

----- Original Message -----
From: "Matthew Hiscock" <audio@...>
To: "MOTM-list" <motm@yahoogroups.com>
Sent: Tuesday, October 14, 2008 12:26 PM
Subject: [motm] 410 clicking in band 1.


> Hi all,
>
> I'm finding a clicking in the outputs of band 1 of my motm410. It
> clicks at the same rate as the built-in LFO, when it hits the low and
> high point of its cycle. I get it in Out 1 and Mix Out but not Outs 2
> & 3.
>
> It might have always been there, but recently I've started using that
> filter to process guitar, so the signal is rarely the full 5v, and
> there's no envelope shutting off the output when I'm not playing.
> When I put a full 5v osc. signal through, I don't hear the clicking
> at all. Probably still there but to far below the level of the signal
> to be audible.
>
> Do other people find this? I'm wondering if this is just a
> consequence of the filter design, or is there something wacky with
> mine specifically?
>
> thanks,
> Matthew
>
>
>
> ------------------------------------
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