MOTM

Oh, man... please don't tell me I've blacked out again; is it *really* 2003 already...? http://www.synthtech.com/news.html

I've got a dumb question about the 940 Patch Panel. This is used to interface the MOTM with a banana-jack machine, such as a Serge.

Now... _how does it do that?_ Naïve question, but seriously, how does the grounding work? I see that for every ¼" jack, there's a "hot" and ground banana, and the grounds are tied together, but where do they "go" on the Serge? Do you alligator clip a single ground line from the '940 to the front panels of the Serge or something?

It's funny that I've never thought about this before. I got mine for doing DIY stuff... you know, converting the ¼" TO TEST LEADS. But how do you use it in the "real world."? In fact, assuming you had a Serge, Modcan, or whatever, how do you actually get audio out of those things and into a mixing board?

> 
> I've got a dumb question about the 940 Patch Panel. This is used to
> interface the MOTM with a banana-jack machine, such as a Serge.
> 
> Now... _how does it do that?_ Naïve question, but seriously, how does the=

> grounding work? I see that for every ¼" jack, there's a "hot" and ground
> banana, and the grounds are tied together, but where do they "go" on the
> Serge? Do you alligator clip a single ground line from the '940 to the fr=
ont
> panels of the Serge or something?

Typically, many banana-based manufacturers offer a ground on the power 
supply (Serge does this).   Grounding to the chassis would also work.  
However, your begin running the risk of ground loops the more you do this, =

especially when grounding multiple banana based modulars together.

> It's funny that I've never thought about this before. I got mine for doin=
g
> DIY stuff... you know, converting the ¼" TO TEST LEADS. But how do you 
use
> it in the "real world."? In fact, assuming you had a Serge, Modcan, or
> whatever, how do you actually get audio out of those things and into a
> mixing board?

Many output modules offer 1/4 outputs in addition to banana jacks.  However=
, 
you can also fabricate a 1/4 to banana cable and ground your system to the =

mixing board.

My question about the design of the 940 is why there are 8 banana ground 
jacks on it?   Wouldn't there only need to be one ground post that you woul=
d 
connect your banana systems to?  Is there a benefit to grounding separate 
systems to each of the individual ground jacks?  Maybe Paul could answer 
this one...

My question about the design of the 940 is why there are 8 banana ground 
jacks on it?  
+++++++++++++++++++++++++++++++++++++++++++++++++++++++

Ahhh.....I will make you ponder about it. Hint: it's not an *electrical* issue.

Paul S.

>My question about the design of the 940 is why there are 8 banana ground
>jacks on it?

So you can hook up 8 scope probes using those 2 pronged banana plugs.

Well, it IS for using standard dual-banana plugs.

Paul S.

----- Original Message ----- 

From: "Scott Juskiw" <scott@...>
To: <motm@yahoogroups.com>
Sent: Monday, November 25, 2002 2:24 PM
Subject: Re: [motm] Re: MOTM-940: Ignorant About Signal Grounding


> >My question about the design of the 940 is why there are 8 banana ground
> >jacks on it?
> 
> So you can hook up 8 scope probes using those 2 pronged banana plugs.
> 
>  
> 
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> 
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