Progress of DIY-PCB (long)

[Jim Johnson]

Count me in on that.

Actually, I'd like to see the interpolating scanner PCB built such that it
could fit behind, say, a 4 or 5 space FracRac panel. 

Jim Johnson 
Metaphoric Software
-------------------
Makers of Techno Toys
Software for Electronic Music
http://www.technotoys.com
info at technotoys.com


*********** REPLY SEPARATOR  ***********

On 4/9/99 at 7:01 PM Roy Tate wrote:

>Last weekend, I offered to collect PCB ideas and wishes from
>various list members.  Here are the results ...
>
>Standards:
>* MOTM sizes, 1/4" jacks
> (5 votes)
>
>* Full 19" width, 1/4" jacks (1 vote for jacks mounted to PCB)
> (6 votes)
>
>* +-15V supply
> (4 votes)
>
>* +-9V supply
> (1 vote)
>
>* +-10V signals
> (1 vote)
>
>* 1 sqr dm (4''x4'') double-sided 'green' pcb w/ silkscreen
> (1 vote)
>
>Projects:
>Interpolating Scanner (11 PCBs)
>    http://www.synthfool.com/diy/jh_ipscan.html
>40235 Filter (11 PCBs)
>    http://www.netcontrol.fi/~jocke/arptech/40235/
>Moog Filter (2 PCBs)
>Temperature Stable VCO (1 PCB)
>Wasp type of Module (1 PCB)
>
>Tom G's Sequencer (12 PCBs)
> - Tom will be handling this PCB.
>
>Help so far:
>PCB layout, Panel Art
>
>Who am I?  No one special.  I don't claim to be a designer, and
>I won't be starting now, but it looked like someone should step
>forward and start organizing this.  All I want are some unique
>PCBs.  I'd be happy to hand this over to any other list member.
>
>What are my motives?  To get some PCBs.  :)  That's it.  I 
>would like to suggest that we concentrate on one board, with no
>promises of more until this one is finished.  I'd like to avoid
>circuits that are planned or in production from MOTM, PAIA, MAP
>or Blacet.  Furthermore, I would like to recommend that we build 
>a PCB for the Interpolating Scanner and make sure it COULD fit
>behind a MOTM panel.
>
>What is the plan?
>1) Select a circuit
>   I don't need 20 of any PCB, so there has to be enough
>   interest in making the design.
>2) Consult circuit designer for changes, modifications, etc.
>3) Group discussion to select parts for things like the 
>   CA3080, CA3280, LM13600, LM13700, and SSM2xxx.
>4) Several helpers will breadboard the circuit (including 
>   any modifications)
>5) Some lucky person will build the PCB files as required
>   by the PCB manufacturer.  The circuit designer may request
>   that his/her name be printed on the PCBs, or not.
>6) Someone will finance the PCB run (maybe me)
>7) PCBs will go to the financer, and/or someone in the country 
>   where PCBs were built.
>8) I will give one or two PCBs to the original circuit 
>   designer.
>9) Circuits will be sold "at cost" plus shipping.
>   This will be tricky, unless someone has the resources for
>   credit card processing, secure web page, etc.
>   We might try having a US, and a European "distributor."
>   I'm open to ideas and suggestions.
>10) If enough people want a common front panel, we can look 
>   at that next.
>
>If this sounds like alot of work, well it will be.  I imagine
>that the project is guaranteed not to make a profit, but ...
>if any profit is derived from this project, it will be split
>equally between the helpers (but not me!), or donated 
>to charity.
>
>Regards,
> 
>Roy Tate
>roytate at ionet.net
>http://www.ionet.net/~roytate