Very important for C16 / +4 - Hardware areSolder and Hannes.
They devoloped and spreaded the 256k-expansion.
Nevertheless my friend Marc Peter and I have developed some interesting
If I got enough time, I will draw the schematics and put them here.
improve the 256k-expansion to 1Mb RAM (and it is still compatible!)
- a very simple sRam-expansion, using only 4 IC's
- a simple serial port for the C16
- the connection of the VC 2031 (predecessor of the 1541, with parallel IEEE488-bus)