Restoring a Commodore SX64

Restoring a Commodore SX64

Some time ago I finally got my hands on a vintage Commodore SX64. This is one of the first ‘portable’ computers ever made and weighted a whopping 10.5Kg!! I had fond memories of this machine and always wanted one since I was a kid. The SX64 is basicly of a...
SX/C64 SDuIEC ROM Cartridge

SX/C64 SDuIEC ROM Cartridge

After some revisions of this project I decided to split the project in an EPROM and SRAM version. The EPROM version should be good for the general audience and the SRAM version for developers. The most obvious thing to program the EPROM with is EPYX fastloader as this...
New PCBs arrived today

New PCBs arrived today

It has been a while that I ordered some PCBs.. I got a bit scared by my own post , so it took a while for sending them in. As usual  I use the DHL option, but as I feared there were custom troubles again. I managed to contact customer service and got it somewhat...
PCB 2: 23C64A adapter

PCB 2: 23C64A adapter

As said in the previous post I have made a couple of PCB’s and they have arrived this week. Today I’m testing my design of a 23C64A to regular EPROM adapter. It will take upto a 64KB EPROM (27C512). I’m a bit hesitating to fit a prototype into my...
New PCBs have arrived

New PCBs have arrived

Every now and then I send  off 3 to 4 gerbers to my friends at dirtypcbs.com. I really like them as they are really cheap (am I Dutch or what?) and they provide reasonable PCB’s. I don’t like to wait about 3 to 4 weeks for them to arrive so I use their DHL...