VICIIdizer128

This adapter board sits between the VIC-IIe (the graphics chip of the Commodore 128) and its socket. It passively listens to all relevant digital data traffic and reconstructs the intended color for every pixel on the screen. This information is then encoded into a standard resolution video signal in a specific way that can be losslessly decoded to a pixel-perfect HDMI signal.

The board comes with aligator clips to attach it to the existing RF output jack.

This one was done because of user requests. It is basically the same as the C64 variant, but in another form factor to fit the larger chip's pinout and with a slightly modified firmware.

This solution does not try to directly generate HDMI or VGA, but creates the intermediary LumaCode signal, which requires very little effort. So the board can be made reasonably cheap. The heavy lifting is then done with an external upscaler (the RGBtoHDMI for example) which will be more expensive, but can be used with multiple machines.

The board will work with all revisions of the VIC-IIe. I took care to build the board in a form to fit all known C128 main boards as well. 

More details are availabe in the project documentation.