Modular Synth Panels

I created a DJB folder and uploaded 7 of my MOTM DIY designs:

2U CV Keyboard Interface module with multiples for JLH-822
2U Mixer / Spring Reverb / A440 Standard / Final Gain module
1U Mixer / Comparator / Full Wave Rectifier based on R. Brewster design
1U Dual LED +/-5 Voltage Monitor module (for monitoring envelopes)
1U AC Power Switch / Cable Check / Stereo Headphone Amp module
2U AC IEC Power In&Out / DC Power Out / Fuse module (for cabinet rear)
1U Dual Trigger Delay module

Dave

I see you added a FWR to my design, instead of the inverter function. Neat.
Can we get a schematic?

-Richard Brewster

----- Original Message -----
From: "djbrow54" <davebr@...>
To: <motmpanels@yahoogroups.com>
Sent: Friday, August 08, 2003 9:26 PM
Subject: [motmpanels] New panels uploaded


> I created a DJB folder and uploaded 7 of my MOTM DIY designs:
>
> 2U CV Keyboard Interface module with multiples for JLH-822
> 2U Mixer / Spring Reverb / A440 Standard / Final Gain module
> 1U Mixer / Comparator / Full Wave Rectifier based on R. Brewster design
> 1U Dual LED +/-5 Voltage Monitor module (for monitoring envelopes)
> 1U AC Power Switch / Cable Check / Stereo Headphone Amp module
> 2U AC IEC Power In&Out / DC Power Out / Fuse module (for cabinet rear)
> 1U Dual Trigger Delay module
>
> Dave
>

I uploaded a DJB-readme.txt file which has a link to some photos and
the schematic. I also put some photos there of the voltage monitor.

I started off with your design but decided I wanted reversing
attenuators. At that point I could no longer use the CGS boards so
decided to build my own. I added invertors so I could maintain
polarity throughout the design and added a full wave rectifier
circuit. I couldn't decide if I wanted this for control voltages or
audio so I added a jumper on the board that will either DC or AC
couple it. In the AC mode the gain is 2X so the 10 volt peak to peak
level is maintained.

Dave


--- In motmpanels@yahoogroups.com, "Richard Brewster" <pugix@n...>
wrote:

> I see you added a FWR to my design, instead of the inverter

function. Neat.

> Can we get a schematic?
>
> -Richard Brewster
>
> ----- Original Message -----
> From: "djbrow54" <davebr@e...>
> To: <motmpanels@yahoogroups.com>
> Sent: Friday, August 08, 2003 9:26 PM
> Subject: [motmpanels] New panels uploaded
>
>
> > I created a DJB folder and uploaded 7 of my MOTM DIY designs:
> >
> > 2U CV Keyboard Interface module with multiples for JLH-822
> > 2U Mixer / Spring Reverb / A440 Standard / Final Gain module
> > 1U Mixer / Comparator / Full Wave Rectifier based on R. Brewster

design

> > 1U Dual LED +/-5 Voltage Monitor module (for monitoring envelopes)
> > 1U AC Power Switch / Cable Check / Stereo Headphone Amp module
> > 2U AC IEC Power In&Out / DC Power Out / Fuse module (for cabinet

rear)

> > 1U Dual Trigger Delay module
> >
> > Dave
> >

Thanks for the upload, Dave.

Well there is an infinite number of ways to make a mixer. I actually wanted
the non-reversing attenuators, which can go quite definitely to zero. I
also have an Oakley Multimix and other reversible attenuators if I want to
use them.

-Richard Brewster

----- Original Message -----
From: "djbrow54" <davebr@...>
To: <motmpanels@yahoogroups.com>
Sent: Sunday, August 10, 2003 5:56 PM
Subject: [motmpanels] Re: New panels uploaded


> I uploaded a DJB-readme.txt file which has a link to some photos and
> the schematic. I also put some photos there of the voltage monitor.
>
> I started off with your design but decided I wanted reversing
> attenuators. At that point I could no longer use the CGS boards so
> decided to build my own. I added invertors so I could maintain
> polarity throughout the design and added a full wave rectifier
> circuit. I couldn't decide if I wanted this for control voltages or
> audio so I added a jumper on the board that will either DC or AC
> couple it. In the AC mode the gain is 2X so the 10 volt peak to peak
> level is maintained.
>
> Dave
>
>
> --- In motmpanels@yahoogroups.com, "Richard Brewster" <pugix@n...>
> wrote:
> > I see you added a FWR to my design, instead of the inverter
> function. Neat.
> > Can we get a schematic?
> >
> > -Richard Brewster
> >
> > ----- Original Message -----
> > From: "djbrow54" <davebr@e...>
> > To: <motmpanels@yahoogroups.com>
> > Sent: Friday, August 08, 2003 9:26 PM
> > Subject: [motmpanels] New panels uploaded
> >
> >
> > > I created a DJB folder and uploaded 7 of my MOTM DIY designs:
> > >
> > > 2U CV Keyboard Interface module with multiples for JLH-822
> > > 2U Mixer / Spring Reverb / A440 Standard / Final Gain module
> > > 1U Mixer / Comparator / Full Wave Rectifier based on R. Brewster
> design
> > > 1U Dual LED +/-5 Voltage Monitor module (for monitoring envelopes)
> > > 1U AC Power Switch / Cable Check / Stereo Headphone Amp module
> > > 2U AC IEC Power In&Out / DC Power Out / Fuse module (for cabinet
> rear)
> > > 1U Dual Trigger Delay module
> > >
> > > Dave
> > >
>
>
>
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