Homebrew PCBs

Get quote from prototype PCB shop for a 19x13" plated hole PCB.
I think you want plated holes unless your looking for a challenge and 
want to connect every single 100*16 pin ICs= 1600 holes + vias.

The computer scanner is the only way I would do it. Do in multiple A4 
and then join/edit in Photoshop, ect. I imagine some skill would be 
needed to drive the editing software, like Photoshop.

Unless you have nothing better to do in the next several months of your 
life, I wouldn't even think about designing and manufacturing the PCB 
from the schematic.

As for non-destructive desoldering of PTH components, I use one of those 
100W plumber electric soldering irons. I made a copper spade tip that 
matches the length of row of pins on 16 pin DIP IC. All 8 pins are 
heated and the package is pulled out slightly by pliers on the component 
side. You can make custom tips easy with materials like, steel rod, 
copper sheet metal, steel screws, ect.


Adam

Tony wrote:
> Hi all,
> 
> Didn't see any discussion on this topic in past posts, so I thought 
> I'd throw this out to the group...
> 
> I am trying to reproduce a circuit board for a very old arcade game 
> from 1975.  Its an old style pitch and bat game, so the electronics 
> are fairly simple, but the board is huge (approx 13x19") with about 
> 100 TTL Logic chips and various resistors/capactors.  Double 
> sided...  This board is no longer available and I have not been able 
> to locate a board for quite some time...  I was able to borrow a 
> board from a fellow collector, but it is only on-loan.  I also have 
> the schematics...
> 
> My question to the group:  Does this sound like a resonable process 
> to reproduce this board:
> 
> 1) Remove all components from board
> 2) Scan in both sides (double sided board)
> 3) Touch up artwork and output to transfer paper
> 4) Transfer images to copper clad board
> 5) Etch, drill, populate...
> 
> Is this the process most of you would follow to reproduce a board?  
> Or am I missing an easier process?  I actually thought about re-
> designing the board a little smaller, but I cannot afford the cost of 
> an auto-routing software package to do a board of that size.
> 
> Any thoughts or suggestions?
> Thanks!
> 
> Tony
> 
> 
> 
> 
> 
> 
> 
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBs
> 
> If Files or Photos are running short of space, post them here:
> http://groups.yahoo.com/group/Homebrew_PCBs_Archives/ 
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 
> 
>