This is really great. I feel like it wouldnt be too complicated to make one with a raspberry pi. Lose the extra ports and the tape drive. Just include an HDMI and an RCA video out for old school crt and maybe the joystick ports. Some games would work better with a wider keyboard instead of stacking the keys. I love it though, the mini tape is a really nice touch!
I find it interesting that if you google for "Funkentstört n. DBP Vfg. 1046/84" (intereference suppressed according to some German Post standard), you will only get results from C64 related websites. Didn't other devices need that label, too?
Let's start to build this, no? The innards of a DTV, some 3D printing, a membrane keyboard with some DIY stickers on it. Hot glue, solder iron, patience and some serious hacking can get this done. Where are the design files?
Might be hard to fit everything in, between the space consumed by the tape recorder, batteries, and expansion slots/connectors. I also seriously doubt that you could power a device like this on a reasonable number of AA batteries, but using an OLED/LCD instead of a CRT and modern lithium cells would make it more plausible.
8bit machines are good in their simplicity, but they were not perfect. Storage of the 80s in particular detracts from the experience, it doesn't enhance it.
...really? Why? I mean, it looks cool, but it is pretty damned useless. If you want a portable C64 your phone can emulate one and it'll probably consume fewer cycles than your clock app.