Below is a list of DIY projects listed on the covers of the magazines (there ''might'' be further projects which aren't listed on the covers).
* Happy Computer Schneider Sonderheft 1 - Trackball for CPC (probably about connecting it, not building it...?)
* Happy Computer Schneider Sonderheft 1 - [[Happy Computer 8bit Printer PortMod]] for 464
* Happy Computer Schneider Sonderheft 2 - Reset Button
* Happy Computer Schneider Sonderheft 2 - Happy Computer RS232 Interface* Happy Computer Schneider Sonderheft 3 - [[Happy Computer 8bit Printer PortMod]] for 664/6128* Happy Computer Schneider Sonderheft 5 - Happy Computer Multifunction card with clock (=RTC?) and interfaces
* Happy Computer Schneider Sonderheft 7 - Upgrade 464/664 to 6128
* Happy Computer Schneider Sonderheft 7 - Memory Expansion for 464/664/6128
* Happy Computer Schneider Sonderheft 8 - Happy Computer Super EPROM Burner
[[Category:CPC Press]] [[Category:Magazines]]