Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Eric Brombaugh
... I assume that the proprietary SW you re talking about is the BasicATOM development environment and interpreter? If that s the case, what would you prefer
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Re: Editorial Comment
2007-08-02 by djbrow54
Thank you John for that clarification. I ve been saying it all along. The intent was that this be a group effort and the resulting design public. I intend to
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by John Mahoney
... Dave s new CVS *is* it. He designed and built it, and it s working. He s selling the few extra PCBs so that others can build it, thus verifying its THIS IS
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Samppa Tolvanen
Hi ya, Dave! ... Your post with made the point clear: You want somebody who is READY to proof build the board and do the documentation. Nothing wrong with
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Jay
... Some of us are incapable at fine handiwork. Tools don t help, unless it s a robot.
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by John Luciani
... I primarily do my own protoypes. If you had a enough boards you could try going to a contract assembly house that does prototypes. One place that comes to
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Jay
Great. How much do you charge?
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Romeo Fahl
I d order a board as well. Not sure what to do panel wise yet, since I don t use MOTM size panels. Romeo ... [Non-text portions of this message have been
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by John Luciani
... SMT soldering isn t difficult. You do need a maginifier and an iron with a fine tip. I use thin solder and a water-soluble flux pen. I have started an
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by krisp
Hi Dave I think your post scared the crap out of us competent but like to go at our one pace type S-DIYers. so we sat back and left it to the more compitent
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Jay
I d order one if there was someone willing to do the SMT soldering for me.
Re: [ComputerVoltageSources] Front panel, was Re: Editorial Comment
2007-08-02 by Doug Wellington
... Yes... If you don t mind waiting until late this year, I should be able to design a stooge panel and set up the CNC and silkscreen. I m sure it will be
Front panel, was Re: Editorial Comment
2007-08-02 by John Mahoney
... Will this be a FrontPanelExpress panel, as shown on Dave s site? http://modularsynthesis.com/cvs/cvs.htm -- john -- No virus found in this outgoing
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by David Moylan
Yes, I d be interested in a panel as well. Dave
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Doug Wellington
Everybody, Dave and I had a conversation in private email last night, so I ve decided that I ll handle a group buy, since he didn t seem to want to buy and
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Norman Fay
Basically, me too on this! As I m not qualified to build one of the prototypes, I figured the best thing to do here was shut up! Sorry! Put my name down
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Jason Proctor
i ll have one, but with all the other stuff i m doing i can t guarantee to build it any time soon. but being a software hack as well as a modular nut, it s
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by The Alison Project
Yes I am interested in a group buy, also did not feel I met the qualifications to buy a proto board. Chris ... From: djbrow54 To:
Re: Editorial Comment
2007-08-02 by djbrow54
Wow - activity! People are following this group. All the documentation I have done is in the Files Hardware CVS Module folder in this group. Photos are
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Doug Wellington
... http://modularsynthesis.com/cvs/cvs.htm -- -Doug http://www.analognotes.com http://www.stoogepanels.com http://www.dougwellington.com
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by crystal
What am I missing? Dazed and confused ... but happy with my CVS. actually it s more like- what am i missing? is there a website with the complete spec and info
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by Brad Hawkins
i want one.
Re: [ComputerVoltageSources] Editorial Comment
2007-08-02 by David Moylan
I ve followed this thread with some interest. I d probably be interested in a group buy in the future. Honestly, I didn t feel I met the qualifications for
Editorial Comment
2007-08-02 by djbrow54
I posted what I thought might be positive news in message 651. Now I realize I wrote it with a lot of shalls and disclaimers but I wanted to be perfectly
CVS Boards limited availability
2007-07-24 by djbrow54
No one on this list volunteered to layout the PCB in a more buildable size but someone did help me buy a small prototype quantity of boards. I didn t want to
Re: PSIM replacement status?
2007-07-24 by djbrow54
Yes, two parts are SMT. The DAC8420FPZ from Digikey in a DIP16 package is $38.64. The TI parts in SMT are less than half that cost and better specs. The
Re: PSIM replacement status?
2007-07-23 by Larry T.
Hmmmm..... I see SMD! Time to find some SMD tips for my Edsyn 951SX soldering station! I can t wait for a board! Now if I just had the funds to do a massive
Re: PSIM replacement status?
2007-07-22 by Grant Richter
You can see the finished layout at: http://launch.ph.groups.yahoo.com/group/ComputerVoltageSources/photos/view/26aa? b=6
CVS Board looks real good!
2007-07-22 by Grant Richter
Dave sure did a great job on the CVS PCB! http://launch.ph.groups.yahoo.com/group/ComputerVoltageSources/photos/view/26aa?b=6
Updated LCD Support PCB Parts List and Modification Instructions
2007-05-26 by John Loffink
The Parts List/Bill of Materials spreadsheet has been updated on the Yahoo CVS group file section. I added two possible replacements for the Seiko LCD which
RE: [ComputerVoltageSources] Re: LCD Support PCB Rev. X00 and Programmed Chip available
2007-05-01 by John Loffink
According to Mouser, Seiko USA is no longer distributing the Seiko LCD parts. Therefore, they cannot get any more and are instructed to direct their customers
RE: [ComputerVoltageSources] Re: LCD Support PCB Rev. X00 and Programmed Chip available
2007-04-30 by John Loffink
The Seiko part still shows on the Mouser online PDF catalog, but not in the online listings. I wonder if it is some sort of web site error. I might need to
RE: [ComputerVoltageSources] Re: LCD Support PCB Rev. X00 and Programmed Chip available
2007-04-30 by John Loffink
There s a Lumex part that works, but you ll have to swap the power and ground leads for the LCD. Let me check around first for direct replacements before I
Re: LCD Support PCB Rev. X00 and Programmed Chip available
2007-04-30 by thealisonproject
Hello all Does anyone know an alternate for the Seiko 16x2 LCD as it is no longer listed from Mouser. Thanks Chris ... photos and ... groups photo ... these
Re: [ComputerVoltageSources] Layout images uploaded
2007-04-28 by John Luciani
... With pcbexpress.com you can panelize your boards. The largest panel is 12x14. If you can place four 5x7 boards on a panel you could buy two panels for $296
Layout images uploaded
2007-04-28 by djbrow54
I uploaded the top and bottom layer images: ComputerVoltageSource layers 4-18-07 (unverified).pdf This is a continued modification of my original PCB that
Re: PSIM replacement
2007-04-28 by djbrow54
I routed the board first without ground planes, and then added them. The ground planes will not merge with the buses, and can only connect through pads. So I
Re: PSIM replacement
2007-04-27 by wiardmodular
... What sort of problems do the way the ground planes were connected have on the software working properly?
Re: PSIM replacement
2007-04-27 by drmabuce
Hi Dave i m a bit embarrassed to say so, but i was worried about the 4x6 real estate limit..... but not having the cajones to try it myself, i held my all too
Re: PSIM replacement
2007-04-27 by djbrow54
It is 4x6 so it is too big for this service. It needs to be even larger. I couldn t fit the MIDI components, I have 1/8 watt resistors UNDER the AtomPro28
[ComputerVoltageSources] Re: PSIM replacement
2007-04-27 by Jason Proctor
i will commit to buying at least one PSIM replacement PCB set. i have no layout skills but i have decent thru-hole building skills. in the unlikely event that
Re: PSIM replacement
2007-04-27 by Larry T.
Dave, and others that may be interested. ExpressPCB offers ProtoPro service. This is 4 boards for $179.00, which includes solder mask and silk screening.
Group buy?
2007-04-27 by Julian
It may be interesting to get an idea of the numbers of interested parties. I for one would put my money where my mouth is and commit to buying one set of pcbs
Re: PSIM replacement
2007-04-27 by djbrow54
The issue is ExpressPCB is very expensive for solder mask in small quantities. The setup fee is $233 so you have to order a lot of boards to cover this cost.
Re: PSIM replacement
2007-04-26 by Larry T.
John, I realize that the design process is a non-trivial one. I wish I had the skill set to do it myself, as I would be more then happy to! Dave indicated
RE: [ComputerVoltageSources] PSIM replacement
2007-04-26 by John Loffink
PSIM as a reference platform didn t go very far when it was last proposed on 3/7/2006. Check the archives. Larry, you should understand that you re asking
PSIM replacement
2007-04-24 by Larry T.
I m glad that I ve brought a little life to this list, it shows that there are people like me that wanted a PSIM and will probably never get one, at least not
Re: PSIM replacement status?
2007-04-24 by djbrow54
OK. I take this back. At lunch I spent some time thinking about this project. The switched reference supplies only take a single DG333A part. Everything
Re: PSIM replacement status?
2007-04-23 by wiardmodular
... Why would you use the I2C instead of the 8 0 to 10v and 8 offset pots for a 16 step sequencer? Your original approach seemed quite elegant. Wasn t the
Re: PSIM replacement status?
2007-04-23 by djbrow54
My $0.02 on the subject ... I just picked a feature set that appealed to me and designed it using a lot of work that others had done. I don t have professional