Patches and discussion for Ensoniq VFX family

> Very interesting, I've been wanting a RAM cart for my SD1 for years
> until I found a genuine RAM cart online (Stor-Cart 32) - but now as this
> PCB exisits I could be interested if the PCB is available for purchase
> which is where all the time and effort goes.
> Just a word of caution, there cart PCB for the ESQ1 looks the same
> except the two are different, the ESQ1 takes a 64k chip and as you say
> this VFX/SD is the 256k device.

Yeh there would be two options; either photoshop the board scans to 
something that's good for exposing a pcb, or use the scans to make a 
proper schematic & board layout with some pcb design software and then 
have some shop like OshPark manufacture the boards.

If ESQ1 cart is 64k (and it's cart slot is VFX compatible), I suppose 
that to use this cart you would need to ground address pins A13 & A14. 
Or perhaps add switches (toggle +5V / GND) to these pins to have 4*64k 
banks to select from.. But do take this with a grain of salt, I don't 
really know a thing about the ESQ1. I'm just assuming that the designs 
would be close to one another since both are about from the same era :)

-- 
.Arto.
http://amazingdiy.wordpress.com/
http://littlebitchard.com/