PLAN B analog blog

Man that is all excellent news, I'll just have to live with my flying  
rail (no back) for a few more months then ;)

~Danny

On Dec 20, 2007, at 11:23 AM, (i think you can figure that out) wrote:

> We're going to try to get it in at about $1200 for the model with mult
> panels on top and blank panels on bottom strips.  Don't hold me to
> this, but this is what I'm shooting for.  For 5 1/2 EUro rows, this is
> not bad.
>
> There are some improvements in power management in this case over
> others in the Euro range:
>
> 1) Crowbar suited for the job.  These power supplies, while fused,
> will fold back before the fuse goes.  Feel free to connect your
> modules incorrectly all day long and leave your fuse pack at home
> while you do.  In most instances the power system will turn itself off
> long before the slo-blow trips.
>
>
> 2) Totally isolated power systems for control and audio modules. Two
> supplies:  one for audio modules, one for control voltage modules. To
> integrate them the powerbuss has two offset rows. One marked for each
> type.  If you keep to those rules and not connect audio modules to the
> wrong buss, you'll be rewarded by a much cleaner audio output.
> Modules which generate electrically noisy signals such as trigger
> generators, LFOs, EGs and anything with LEDs in it are the culprits.
> Keeping them to their own power supply it really helps. if you connect
> modules to the wrong buss it won't blow anything up, but it will
> degrade the audio.
>
> 3) All of the buss returns (grounds) go straight to the supply --> NO
> DAISY-CHAINING.  Having four lines across the bussboard for +/-12, +5
> and ground to each power connector, or daisy chaining the power via
> wires as Serge does things is a temptation, but creates a ground mess.
> Basically any module generating grass will infiltrate it's way into
> all the others.  Ground connections going directly to the supply cuts
> down that interference. From a long view this may seem like smoke and
> mirrors - I mean, if they all go to the return, then they are all
> still shorted together, what's the difference in how that occurs?
>
> BIG difference.
>
> 4)  Rear accessibility.  Each row of these cases will have access hole
> off the back so one can feed lines into boats if they care to.  We
> have a number of midi controllable modules on the horizon.  Midi
> cables on faceplates are bulky.  mounting them on the back of the PCBs
> and using the rear access holes to route in a midi cable makes much
> more sense to me.
>
>
>
>
> Yahoo! Groups Links
>
>
>

Daniel Ornelas
danny@anadeji.com