Patches and discussion for Ensoniq VFX family

On Jun 7, 2011, at 3:43 PM, john bluhm wrote:

> The easy way to make an EEPROM Cartridge for the VFX/SD-1 family of synthesizers is
> to convert a VFX ROM cartridge to an EEPROM. The circuit boards are identical. Only the
> memory chip needs to be changed, and two jumper wires need to be moved.
>  
> Here is a link that explains the entire job, with pictures.
> http://members.pro-ns.net/~steve/vfxcart.html
>  
> I've made five such conversions and they all worked perfectly. 

That may well be the case, but it requires having an EPROM cartridge in the first place (which I don't) and also means that you sacrifice the EPROM cartridge. I want to be able to make myself new EEPROM cartridges from scratch without having to rely on an existing supply of pre-manufactured EPROM cartridges.

Best wishes,

// Christian Brunschen