Modular Synth Panels

On Nov 24, 2008, at 1:31 PM, "clickmrmike" <mrmike@...> wrote:

> Any interest in a MOTM format panel for Marc B's Quantix-8?
> I'd be good for 2.
>
> clickmrmike
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>

>
> Any interest in a MOTM format panel for Marc B's Quantix-8?
> I'd be good for 2.
> 
> clickmrmike
>

>
> Any interest in a MOTM format panel for Marc B's Quantix-8?
> I'd be good for 2.
> 
> clickmrmike
>

On Nov 25, 2008, at 6:23 PM, "wjhall11" <wjhall@...> wrote:

> Will and I would take 2 (Bill having consulted with Will)
>
> Bill and Will
>
>
>
> --- In ModularSynthPanels@yahoogroups.com, "clickmrmike" <mrmike@...>
> wrote:
>>
>> Any interest in a MOTM format panel for Marc B's Quantix-8?
>> I'd be good for 2.
>>
>> clickmrmike
>>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>

>
> I'm in for two. -- skw
> 
> 
> Sent from my iPhone
> 
> On Nov 25, 2008, at 6:23 PM, "wjhall11" <wjhall@...> wrote:
> 
> > Will and I would take 2 (Bill having consulted with Will)
> >
> > Bill and Will
> >
> >
> >
> > --- In ModularSynthPanels@yahoogroups.com, "clickmrmike" <mrmike@>
> > wrote:
> >>
> >> Any interest in a MOTM format panel for Marc B's Quantix-8?
> >> I'd be good for 2.
> >>
> >> clickmrmike
> >>
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>

On Nov 26, 2008, at 9:51 AM, clickmrmike wrote:

> Well, that's 14ish...
>  So, MIDI connector on the front or not? Like Marc, I'm wiring MIDI
>  internally, so I'd vote no. It can be drilled if you need it, bit
>  it's alot harder to fill in the hole :)
>
>  clickmrmike
>
>  --- In ModularSynthPanels@yahoogroups.com, Scott K Warren <scott@...>
>  wrote:
>  >
>  > I'm in for two. -- skw
>  >
>  >
>  > Sent from my iPhone
>  >
>  > On Nov 25, 2008, at 6:23 PM, "wjhall11" <wjhall@...> wrote:
>  >
>  > > Will and I would take 2 (Bill having consulted with Will)
>  > >
>  > > Bill and Will
>  > >
>  > >
>  > >
>  > > --- In ModularSynthPanels@yahoogroups.com, "clickmrmike" <mrmike@>
>  > > wrote:
>  > >>
>  > >> Any interest in a MOTM format panel for Marc B's Quantix-8?
>  > >> I'd be good for 2.
>  > >>
>  > >> clickmrmike
>  > >>
>  > >
>  > >
>  > >
>  > > ------------------------------------
>  > >
>  > > Yahoo! Groups Links
>  > >
>  > >
>  > >
>  >
>
>  
>

> >  > > wrote:
> >  > >>
> >  > >> Any interest in a MOTM format panel for Marc B's Quantix-8?
> >  > >> I'd be good for 2.
> >  > >>
> >  > >> clickmrmike
> >  > >>
> >  > >
> >  > >
> >  > >
> >  > > ------------------------------------
> >  > >
> >  > > Yahoo! Groups Links
> >  > >
> >  > >
> >  > >
> >  >
> >
> >  
> >
>

On Nov 28, 2008, at 8:28 AM, clickmrmike wrote:

> You went out at 4AM on the worst shopping day of the year in the USA
>  to buy underwear? That's hardcore! I'd just go commando for the
>  weekend...
>
>  I regular MIDI jack hole is fine, and probably better than a pinhole
>  everyone would have to drill out. I would spec the connector hole,
>  tho - maybe use the same MIDI jack as the CVS. It doesn't look like
>  anyone else internally wires, and I don't need to connect it.
>
>  mr "Be free!" mike
>
>  --- In ModularSynthPanels@yahoogroups.com, Scott Deyo <contact@...> 
> wrote:
>  >
>  > Whew, just got back from my 4AM trip to JC Penny. I got some 
> underwear
>  > on the cheap but had to elbow some ladies out of the way.
>  >
>  > Looks like there's pleny of room for a Midi jack. How about a tiny
>  > pilot hole? Then individual users could drill it out if they needed
>  > Midi. I don't think a silkscreen label would be necessary.
>  >
>  >
>  > Scott Deyo
>  > The Bridechamber
>  > contact@...
>  > http://www.bridechamber.com
>  > Jealous Edison Record Kompany
>  > http://www.jealousedison.com
>  >
>  >
>  > On Nov 26, 2008, at 9:51 AM, clickmrmike wrote:
>  >
>  > > Well, that's 14ish...
>  > > So, MIDI connector on the front or not? Like Marc, I'm wiring MIDI
>  > > internally, so I'd vote no. It can be drilled if you need it, bit
>  > > it's alot harder to fill in the hole :)
>  > >
>  > > clickmrmike
>  > >
>  > > --- In ModularSynthPanels@yahoogroups.com, Scott K Warren <scott@>
>  > > wrote:
>  > > >
>  > > > I'm in for two. -- skw
>  > > >
>  > > >
>  > > > Sent from my iPhone
>  > > >
>  > > > On Nov 25, 2008, at 6:23 PM, "wjhall11" <wjhall@> wrote:
>  > > >
>  > > > > Will and I would take 2 (Bill having consulted with Will)
>  > > > >
>  > > > > Bill and Will
>  > > > >
>  > > > >
>  > > > >
>  > > > > --- In ModularSynthPanels@yahoogroups.com, "clickmrmike"
>  <mrmike@>
>  > > > > wrote:
>  > > > >>
>  > > > >> Any interest in a MOTM format panel for Marc B's Quantix-8?
>  > > > >> I'd be good for 2.
>  > > > >>
>  > > > >> clickmrmike
>  > > > >>
>  > > > >
>  > > > >
>  > > > >
>  > > > > ------------------------------------
>  > > > >
>  > > > > Yahoo! Groups Links
>  > > > >
>  > > > >
>  > > > >
>  > > >
>  > >
>  > >
>  > >
>  >
>
>  
>

>
> Whew, just got back from my 4AM trip to JC Penny. I got some underwear 
> on the cheap but had to elbow some ladies out of the way.
> 
> Looks like there's pleny of room for a Midi jack. How about a tiny 
> pilot hole? Then individual users could drill it out if they needed 
> Midi. I don't think a silkscreen label would be necessary.
> 
> 
> Scott Deyo
> The Bridechamber
> contact@...
> http://www.bridechamber.com
> Jealous Edison Record Kompany
> http://www.jealousedison.com
> 
> 
> On Nov 26, 2008, at 9:51 AM, clickmrmike wrote:
> 
> > Well, that's 14ish...
> >  So, MIDI connector on the front or not? Like Marc, I'm wiring MIDI
> >  internally, so I'd vote no. It can be drilled if you need it, bit
> >  it's alot harder to fill in the hole :)
> >
> >  clickmrmike
> >
> >  --- In ModularSynthPanels@yahoogroups.com, Scott K Warren <scott@>
> >  wrote:
> >  >
> >  > I'm in for two. -- skw
> >  >
> >  >
> >  > Sent from my iPhone
> >  >
> >  > On Nov 25, 2008, at 6:23 PM, "wjhall11" <wjhall@> wrote:
> >  >
> >  > > Will and I would take 2 (Bill having consulted with Will)
> >  > >
> >  > > Bill and Will
> >  > >
> >  > >
> >  > >
> >  > > --- In ModularSynthPanels@yahoogroups.com, "clickmrmike" <mrmike@>
> >  > > wrote:
> >  > >>
> >  > >> Any interest in a MOTM format panel for Marc B's Quantix-8?
> >  > >> I'd be good for 2.
> >  > >>
> >  > >> clickmrmike
> >  > >>
> >  > >
> >  > >
> >  > >
> >  > > ------------------------------------
> >  > >
> >  > > Yahoo! Groups Links
> >  > >
> >  > >
> >  > >
> >  >
> >
> >  
> >
>

From: James Elliott <johans121@...>
To: ModularSynthPanels@yahoogroups.com
Sent: Tuesday, September 22, 2009 12:20:57 PM
Subject: [ModularSynthPanels] ChaQuo Wiring Question...

  
Ok.... so I'm a bit of a moron, so I have to ask... 

How do I wire up R24 (dual ganged QO Fine Tune pot) and S1 (High/Low Range switch)? 

For R24, the schematic only shows CW being connected... 

For S1, is High when the switch is closed, or is Low when the switch is
closed? Or.... does S1a have to be closed and S1b open for high (or
vice versa)?

On Sep 22, 2009, at 3:00 PM, James Elliott wrote:

>
> Here's the response I got from Ian.
> ---------------------------------------------------------------------------------
> Sorry for the confusion.
>
> For R24a and R24b, their cw terminals are connected to J2 (pins 10  
> and 12).
> Their sliders are connected to their ccw terminals and additionally  
> to the cw terminals of R25. These connections are made on the panel,  
> as indicated by the "on pan" label on the schematic.
>
> For S1, the range is low when open (as drawn) and high when shorted.
>
> Hope this is clear now. It might help you to mark the cw and ccw  
> terminals on the panel and to make a little sketch of the wiring  
> before you start soldering. (I think that's what most of us end up  
> doing to keep from getting confused.)
>
> Don't hesitate to ask if you have more questions. I know that my  
> minimalist notation is sometimes confusing to some people.
>
> From: James Elliott <johans121@...>
> To: ModularSynthPanels@yahoogroups.com
> Sent: Tuesday, September 22, 2009 12:20:57 PM
> Subject: [ModularSynthPanels] ChaQuo Wiring Question...
>
>
>
> Ok.... so I'm a bit of a moron, so I have to ask...
>
> How do I wire up R24 (dual ganged QO Fine Tune pot) and S1 (High/Low  
> Range switch)?
>
> For R24, the schematic only shows CW being connected...
>
> For S1, is High when the switch is closed, or is Low when the switch  
> is closed? Or.... does S1a have to be closed and S1b open for high  
> (or vice versa)?
>
>
>
>

From: James Elliott <johans121@yahoo. com>
>To: ModularSynthPanels@ yahoogroups. com
>Sent: Tuesday, September 22, 2009 12:20:57 PM
>Subject: [ModularSynthPanels ] ChaQuo Wiring Question...
>
> 
>
>
>Ok.... so I'm a bit of a moron, so I have to ask... 
>
>How do I wire up R24 (dual ganged QO Fine Tune pot) and S1 (High/Low Range switch)? 
>
>For R24, the schematic only shows CW being connected... 
>
>For S1, is High when the switch is closed, or is Low when the switch is closed? Or.... does S1a have to be closed and S1b open for high (or vice versa)?
>
>
>
>
>

On Sep 26, 2009, at 1:06 PM, James Elliott wrote:

>
> It's all good. Ian got back to me shortly after posting my question,  
> so I wasn't left hanging :) The Chaos section works, however I can't  
> get oscillations from the QO side.... All resistors are in their  
> correct little places and all chips are getting power so I have a  
> feeling I may have torched one of the polystyrene caps. I'm trying  
> to put together a large parts order for something I'm trying to  
> build so it will be a couple weeks before I can continue  
> troubleshooting as I don't have any 'styrene caps on hand :( I think  
> I'm going to start using those fancy schmancy multilayer ceramics  
> instead of polystyrene caps in my builds from this moment forth.
>
> From: Scott Deyo <contact@...>
> To: ModularSynthPanels@yahoogroups.com
> Sent: Saturday, September 26, 2009 11:29:33 AM
> Subject: Re: [ModularSynthPanels] ChaQuo Wiring Question...
>
>
> Sorry for not getting back to you on that one. Been sick all week.  
> Blech!
>
>
> Scott Deyo
> contact@bridechambe r.com
> The Bridechamber
> www.bridechamber. com
> Jealous Edison Record Kompany
> www.jealousedison. com
>
>
>
>
> On Sep 22, 2009, at 3:00 PM, James Elliott wrote:
>
>>
>> Here's the response I got from Ian.
>> ------------ --------- --------- --------- --------- ---------  
>> --------- --------- ------
>> Sorry for the confusion.
>>
>> For R24a and R24b, their cw terminals are connected to J2 (pins 10  
>> and 12).
>> Their sliders are connected to their ccw terminals and additionally  
>> to the cw terminals of R25. These connections are made on the  
>> panel, as indicated by the "on pan" label on the schematic.
>>
>> For S1, the range is low when open (as drawn) and high when shorted.
>>
>> Hope this is clear now. It might help you to mark the cw and ccw  
>> terminals on the panel and to make a little sketch of the wiring  
>> before you start soldering. (I think that's what most of us end up  
>> doing to keep from getting confused.)
>>
>> Don't hesitate to ask if you have more questions. I know that my  
>> minimalist notation is sometimes confusing to some people.
>>
>> From: James Elliott <johans121@yahoo. com>
>> To: ModularSynthPanels@ yahoogroups. com
>> Sent: Tuesday, September 22, 2009 12:20:57 PM
>> Subject: [ModularSynthPanels ] ChaQuo Wiring Question...
>>
>>
>>
>> Ok.... so I'm a bit of a moron, so I have to ask...
>>
>> How do I wire up R24 (dual ganged QO Fine Tune pot) and S1 (High/ 
>> Low Range switch)?
>>
>> For R24, the schematic only shows CW being connected...
>>
>> For S1, is High when the switch is closed, or is Low when the  
>> switch is closed? Or.... does S1a have to be closed and S1b open  
>> for high (or vice versa)?
>>
>>
>>
>
>
>
>

> On Sat, 26 Sep 2009, Scott Deyo wrote:
>
>   
>> Yeah, I torched a polysty on mine too. That's probably the culprit. Polysty's 
>> and tantalums are bummin' me out lately...
>>     
>
> Speaking of tantalums, came across this interesting tale from
> days of yore:
>
> http://www.designnews.com/blog/Made_by_Monkeys/23362-Do_You_Want_Butter_On_Those_Capacitors_.php?nid=3073&rid=398497
>
> --
> Monty Brandenberg
>
>

> -----Original Message-----
> From: ModularSynthPanels@yahoogroups.com 
> [mailto:ModularSynthPanels@yahoogroups.com] On Behalf Of 
> Richard Brewster
> Sent: Sunday, September 27, 2009 6:32 AM
> To: ModularSynthPanels@yahoogroups.com
> Subject: Re: [ModularSynthPanels] ChaQuo Wiring Question...
> 
> I'd not use any tantalum caps.  Their main benefit is the 
> smaller size 
> vs electrolytic of the same specs.  They also cost more.  I 
> have one of 
> my own tales from the days of yore.  I used to hand-build audio and 
> video synthesizer circuits in the seventies.  These were all 
> prototypes 
> and needed plenty of power line bypassing.  At one point we 
> used a bunch 
> of 100 nf Panasonic tantalums.  We might put 20-30 of them on 
> a board.  
> And yes, they did fail by shorting out.  But unless it fried 
> and burned, 
> we could not tell which one failed.  So, one by one, each had to be 
> clipped out until the bad ones were found.  Then all the "good" ones 
> that had been removed too had to be replaced.  Needless to say, we 
> stopped using the tantalums.  If you do want to use some, I'd 
> recommend 
> ones with at least a 35 volt rating.
> 
> Richard Brewster
> http://www.pugix.com
> 
> mcb, inc. wrote:
> > On Sat, 26 Sep 2009, Scott Deyo wrote:
> >
> >   
> >> Yeah, I torched a polysty on mine too. That's probably the 
> culprit. Polysty's 
> >> and tantalums are bummin' me out lately...
> >>     
> >
> > Speaking of tantalums, came across this interesting tale from
> > days of yore:
> >
> > 
> http://www.designnews.com/blog/Made_by_Monkeys/23362-Do_You_Wa
> nt_Butter_On_Those_Capacitors_.php?nid=3073&rid=398497
> >
> > --
> > Monty Brandenberg
> >
> >   
> 
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
>

On 28 sep 2009, at 07:43, Dave Halliday wrote:

> The tants had a really good high frequency response IIRC -- good for
> filtering out noise as well as 60Hz.
>
> My technique was to follow the power buss on the circuit board and  
> find an
> arbitrary mid-point that was away from any critical wiring and use a  
> dremel
> tool to sever it.
>
> Find out which half had the short and proceed until you had three or  
> four
> caps to test. Unsolder one lead and lift the leg and test the power  
> buss
> again.
>
> I could usually find a dead cap in 10-15 minutes. A good friend of  
> mine
> nearly fainted when I dug into his Odyssey although he had thought the
> problem was in the power supply and had disassembled it. Took me  
> longer to
> put that together than to find and replace the dead tant.
>
> Scrape the traces on each side of the dremel cut and solder a bit of  
> solid
> wire to bridge the gap.
>
> Dave
>
>> -----Original Message-----
>> From: ModularSynthPanels@yahoogroups.com
>> [mailto:ModularSynthPanels@yahoogroups.com] On Behalf Of
>> Richard Brewster
>> Sent: Sunday, September 27, 2009 6:32 AM
>> To: ModularSynthPanels@yahoogroups.com
>> Subject: Re: [ModularSynthPanels] ChaQuo Wiring Question...
>>
>> I'd not use any tantalum caps.  Their main benefit is the
>> smaller size
>> vs electrolytic of the same specs.  They also cost more.  I
>> have one of
>> my own tales from the days of yore.  I used to hand-build audio and
>> video synthesizer circuits in the seventies.  These were all
>> prototypes
>> and needed plenty of power line bypassing.  At one point we
>> used a bunch
>> of 100 nf Panasonic tantalums.  We might put 20-30 of them on
>> a board.
>> And yes, they did fail by shorting out.  But unless it fried
>> and burned,
>> we could not tell which one failed.  So, one by one, each had to be
>> clipped out until the bad ones were found.  Then all the "good" ones
>> that had been removed too had to be replaced.  Needless to say, we
>> stopped using the tantalums.  If you do want to use some, I'd
>> recommend
>> ones with at least a 35 volt rating.
>>
>> Richard Brewster
>> http://www.pugix.com
>>
>> mcb, inc. wrote:
>>> On Sat, 26 Sep 2009, Scott Deyo wrote:
>>>
>>>
>>>> Yeah, I torched a polysty on mine too. That's probably the
>> culprit. Polysty's
>>>> and tantalums are bummin' me out lately...
>>>>
>>>
>>> Speaking of tantalums, came across this interesting tale from
>>> days of yore:
>>>
>>>
>> http://www.designnews.com/blog/Made_by_Monkeys/23362-Do_You_Wa
>> nt_Butter_On_Those_Capacitors_.php?nid=3073&rid=398497
>>>
>>> --
>>> Monty Brandenberg
>>>
>>>
>>
>>
>>
>> ------------------------------------
>>
>> Yahoo! Groups Links
>>
>>
>>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>

> -----Original Message-----
> From: ModularSynthPanels@yahoogroups.com 
> [mailto:ModularSynthPanels@yahoogroups.com] On Behalf Of Ben Stuyts
> Sent: Monday, September 28, 2009 2:29 AM
> To: ModularSynthPanels@yahoogroups.com
> Subject: Re: [ModularSynthPanels] ChaQuo Wiring Question...
> 
> Ouch, that hurts... :-)
> 
> What I usually do is get a good DMM (a Fluke 45 in my case), 
> and just  
> measure the resistance across all the caps. Yes, we're 
> talking 10's of  
> milli-ohms difference here, but the lowest one(s) are easily 
> found. If  
> you follow a power/gnd pair of traces, you can even see if you're  
> getting close because the resistance is getting lower and 
> lower. Also  
> works when finding a bad chip with an internal short.
> 
> Ben
> 
> 
> On 28 sep 2009, at 07:43, Dave Halliday wrote:
> 
> > The tants had a really good high frequency response IIRC -- good for
> > filtering out noise as well as 60Hz.
> >
> > My technique was to follow the power buss on the circuit board and  
> > find an
> > arbitrary mid-point that was away from any critical wiring 
> and use a  
> > dremel
> > tool to sever it.
> >
> > Find out which half had the short and proceed until you had 
> three or  
> > four
> > caps to test. Unsolder one lead and lift the leg and test 
> the power  
> > buss
> > again.
> >
> > I could usually find a dead cap in 10-15 minutes. A good friend of  
> > mine
> > nearly fainted when I dug into his Odyssey although he had 
> thought the
> > problem was in the power supply and had disassembled it. Took me  
> > longer to
> > put that together than to find and replace the dead tant.
> >
> > Scrape the traces on each side of the dremel cut and solder 
> a bit of  
> > solid
> > wire to bridge the gap.
> >
> > Dave
> >
> >> -----Original Message-----
> >> From: ModularSynthPanels@yahoogroups.com
> >> [mailto:ModularSynthPanels@yahoogroups.com] On Behalf Of
> >> Richard Brewster
> >> Sent: Sunday, September 27, 2009 6:32 AM
> >> To: ModularSynthPanels@yahoogroups.com
> >> Subject: Re: [ModularSynthPanels] ChaQuo Wiring Question...
> >>
> >> I'd not use any tantalum caps.  Their main benefit is the
> >> smaller size
> >> vs electrolytic of the same specs.  They also cost more.  I
> >> have one of
> >> my own tales from the days of yore.  I used to hand-build audio and
> >> video synthesizer circuits in the seventies.  These were all
> >> prototypes
> >> and needed plenty of power line bypassing.  At one point we
> >> used a bunch
> >> of 100 nf Panasonic tantalums.  We might put 20-30 of them on
> >> a board.
> >> And yes, they did fail by shorting out.  But unless it fried
> >> and burned,
> >> we could not tell which one failed.  So, one by one, each had to be
> >> clipped out until the bad ones were found.  Then all the 
> "good" ones
> >> that had been removed too had to be replaced.  Needless to say, we
> >> stopped using the tantalums.  If you do want to use some, I'd
> >> recommend
> >> ones with at least a 35 volt rating.
> >>
> >> Richard Brewster
> >> http://www.pugix.com
> >>
> >> mcb, inc. wrote:
> >>> On Sat, 26 Sep 2009, Scott Deyo wrote:
> >>>
> >>>
> >>>> Yeah, I torched a polysty on mine too. That's probably the
> >> culprit. Polysty's
> >>>> and tantalums are bummin' me out lately...
> >>>>
> >>>
> >>> Speaking of tantalums, came across this interesting tale from
> >>> days of yore:
> >>>
> >>>
> >> http://www.designnews.com/blog/Made_by_Monkeys/23362-Do_You_Wa
> >> nt_Butter_On_Those_Capacitors_.php?nid=3073&rid=398497
> >>>
> >>> --
> >>> Monty Brandenberg
> >>>
> >>>
> >>
> >>
> >>
> >> ------------------------------------
> >>
> >> Yahoo! Groups Links
> >>
> >>
> >>
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> 
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
>