Vintage Synth Repair

What is the chip number and do you know what machines used them?

--- In vintagesynthrepair@yahoogroups.com, Russell Rose <russrose@...> wrote:
>
> what's the manufacturer part#?what's the yamaha part#?
> On May 19, 2008, at 5:50 PM, Scott Nordlund wrote:
> 
> > I'm looking to get a rather unusual SRAM chip (4M x 1 bit, 5V,  
> > asynchronous, parallel interface) for a project I'm working on  
> > (Yamaha VSS-200).  These chips were produced by several companies,  
> > but they're all obsolete now and all the stock seems to have been  
> > bought by "$250 minimum order, send request for quote" type  
> > places.  Does anyone know of any possible alternative source for  
> > these (I tried all the usual suppliers that I could think of-  
> > mouser/digikey/jameco/etc.) or any clever way to trick someone into  
> > selling single/small quantities for a reasonable price?
> >
> > Give to a good cause with every e-mail. Join the i'm Initiative  
> > from Microsoft.
>