Re: VIC-20 "all games in one" cartridge update

From: Professor Dredd (profdredd_at_yahoo.com)
Date: 2001-03-30 23:29:05

I'll buy one if it'll work in my USA VIC-20. 

--- Marko_Mäkelä <msmakela@cc.hut.fi> wrote:
> [Re: previuos posting on B&W C64: Nick, I said
> "Nicolas", not "Nicholas". :-)
> But you made a good point anyway; I didn't consider
> the possibility of a
> 3rd party modification.]
> 
> I've now almost designed the printed circuit board
> for the VIC-20 memory
> cartridge.  It'll have 4 chips on the top side:
> Am29LV160D (2MB Flash
> ROM), HM62256B (32kB SRAM), 74LVX245 (data bus
> buffer), and Lattice 2032
> programmable logic chip.  On the bottom side there
> are only two 74LVX245
> chips that buffer the address lines.
> 
> The 3.3 volt regulator and the programming interface
> for the Lattice 2032
> are missing, but I hope my friend will be able to
> fill these gaps soon.
> There are 31 holes on the board now.
> 
> My question is: how many people would be interested
> in this cartridge, and
> how many have the skills and equipment to (a)
> manufacture, and (b)
> assemble the printed circuit board?  This will be a
> freeware product, but
> since I think that SMD chips and boards are
> difficult to handle without
> expensive equipment, it would be good to have the
> boards professionally
> produced somewhere.  If someone knows a cheap place
> for doing this (I
> think etching, drilling and coating with the "green
> paint" that resists
> solder would be enough), I would like to know.  My
> friend has access to
> some equipment, but it is not suitable for producing
> more than, say, 5
> prototype boards.
> 
> 	Marko
> 
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