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MOTM-850 Pedal mockup

MOTM-850 Pedal mockup

2001-08-25 by Paul Schreiber

Go to

www.synthtech.com/pix

you will see it there (with other random stuff).

Thanks to Moe for the pix and Stooge Larry for the testing (cough cough).

Paul S.

Re: MOTM-850 Pedal mockup

2001-08-25 by Eric Frampton

Paul Saith:

> you will see it there (with other random stuff).

Does the Mix control change the amount of Mix In CV summed with the internal
CV, or does it mix -between- the two? I.e., would it be possible to create a
CV out of 30% 850, 70% Mix In? If not, could it, or should it (and thus make
the scale of that knob not 0-10, but 0-100%)?

Also, and pardon my complete ignorance here, is this module's job to
basically take a non-powered CV pedal and power it up? Would simply plugging
in an old Moog 1130 CV pedal, which outputs 0 to 5v, accomplish much of the
same result (obviously without the scaling or Triggering options)?

And, when Paul (or Larry, I forget which) mentioned Yamaha-style pedal, do
you mean the optical ones (like what came with my old DX7), or is there
another one?

Just as long as you can hook those generic
everybody-rebadges-them-but-they're-just-cheap-Fatar CV pedals up to it...

Thanks,
Eric

-----

Eric Frampton, keyboards     Atlanta, Georgia, USA
web: http://www.ericframpton.com/
email: eric@...

Re: [motm] MOTM-850 Pedal mockup

2001-08-25 by elhardt@aol.com

eframp@... writes:

>>Also, and pardon my complete ignorance here, is this module's job to 
basically take a non-powered CV pedal and power it up? Would simply plugging 
in an old Moog 1130 CV pedal, which outputs 0 to 5v, accomplish much of the 
same result (obviously without the scaling or Triggering options)?<<

When a couple of other people seemed disappointed that the 850 would only 
handle one pedal I was going to mention that they can use as many powered 
pedals as they want, but I didn't want Paul thinking I was trying to talk 
people out of buying the 850.  I have one of those old Moog pedals I was just 
about to plug in myself.  However that pedal doesn't operate as nicely as the 
Roland and probably Yamaha pedals.  In the past I always seemed to have 
problems getting it to control a parameter and match up with the pedal 
position the way I wanted it too.  That's probably because of its lack of 
scaling and offset controls.  Although most MOTM modules have an input level 
pot.

-Elhardt

Re: [motm] MOTM-850 Pedal mockup

2001-08-25 by J. Larry Hendry

One feature perhaps not mentioned is that the 850 will also accept this type
of CV pedal in the pedal input.  So, you can still use that pedal and get
the added features of offset and range.

For all you guys that think the Roland EV pedal is nice, you must not have
tried the Yamaha FC-7.  The Yamaha is far superior to the Roalnd pedal in
every way.  Buy yourself one and you will never go back.  I have 3 FC-7s.
Two have 12 years of gigging on them.  The third is my spare, which I have
never needed.

Larry Hendry
Show quoted textHide quoted text
----- Original Message -----
From: <elhardt@...>
 I have one of those old Moog pedals I was just
about to plug in myself.  However that pedal doesn't
operate as nicely as the Roland and probably
Yamaha pedals.  In the past I always seemed to have
problems getting it to control a parameter and match
up with the pedal position the way I wanted it too.
That's probably because of its lack of  scaling and
offset controls.

-Elhardt

Re: [motm] Re: MOTM-850 Pedal mockup

2001-08-26 by The Old Crow

One tiny suggestion: put a 3.5mm jack near the left edge so I can plug
in a BC-1.  If a stereo 1/4" to 3.5mm will suffice, never mind. :)

Crow

/**/

Re: [motm] Re: MOTM-850 Pedal mockup

2001-08-26 by The Old Crow

On Sun, 26 Aug 2001 mate_stubb@... wrote:

> Crow: what exactly does a BC-1 or BC-3 output? Direct CVs?

  It is just a strain-gauge pot: tip is "wiper", ring is +5V, shield
ring is common. +5V is supplied to the BC-1 from, say, a DX7 BC jack.

  I've never used a BC-3, but I would think it to be similar.

Crow

/**/

Re: [motm] Re: MOTM-850 Pedal mockup

2001-08-26 by Paul Schreiber

>
> Does the Mix control change the amount of Mix In CV summed with the
internal
> CV, or does it mix -between- the two? I.e., would it be possible to create
a
> CV out of 30% 850, 70% Mix In? If not, could it, or should it (and thus
make
> the scale of that knob not 0-10, but 0-100%)?

It adds whatever you plug into it with the Pedal CV. The Pedal CV is at
100%. The Mix
pot in an input attenuator.

So, MIX IN could be from a keyboard and then Pedal adds swooping
(foot-powered ribbon controller :) )

>
> Also, and pardon my complete ignorance here, is this module's job to
> basically take a non-powered CV pedal and power it up? Would simply
plugging
> in an old Moog 1130 CV pedal, which outputs 0 to 5v, accomplish much of
the
> same result (obviously without the scaling or Triggering options)?

Old Moog pedals aren't exactly commonplace (although I have one). You can
plug in a CV
into Pedal IN due to Stooge Larry's clever input scheme.

>
> And, when Paul (or Larry, I forget which) mentioned Yamaha-style pedal, do
> you mean the optical ones (like what came with my old DX7), or is there
> another one?

The interface is tested with Roland EV-5 and Yamaha FC-5 and FC-7 pedals.
Any 'resistive'
pedal will work. There is a jumper to select the resistance of the pedal pot
(10K, 50K or 100K).

Paul S.

Re: [motm] Re: MOTM-850 Pedal mockup

2001-08-26 by mate_stubb@yahoo.com

>>>>
One tiny suggestion: put a 3.5mm jack near the left edge so I can plug
in a BC-1.  If a stereo 1/4" to 3.5mm will suffice, never mind. :)
Crow
<<<<

Crow: what exactly does a BC-1 or BC-3 output? Direct CVs?

Moe

Re: [motm] Re: MOTM-850 Pedal mockup

2001-08-27 by mark@indole.net

>The interface is tested with Roland EV-5 and Yamaha FC-5 and FC-7 pedals.
>Any 'resistive' pedal will work. There is a jumper to select the
>resistance of the pedal pot (10K, 50K or 100K).

I'm confused here, but isn't a resistive pedal simply a pot set up as a
voltage divider??  If so, why would the value of the pot matter??

Re: [motm] Re: MOTM-850 Pedal mockup

2001-08-27 by Paul Schreiber

Because clever Stooge input, that senses Yamaha or Roland (wired
differently, just to be a pain in the ass)
uses a *current*.

Paul S.

----- Original Message -----
Show quoted textHide quoted text
From: <mark@...>
To: <motm@yahoogroups.com>
Sent: Monday, August 27, 2001 1:51 PM
Subject: Re: [motm] Re: MOTM-850 Pedal mockup


>
> >The interface is tested with Roland EV-5 and Yamaha FC-5 and FC-7 pedals.
> >Any 'resistive' pedal will work. There is a jumper to select the
> >resistance of the pedal pot (10K, 50K or 100K).
>
> I'm confused here, but isn't a resistive pedal simply a pot set up as a
> voltage divider??  If so, why would the value of the pot matter??
>
>
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>

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