This article is about the rebuild of an old IEEE-488 interface card for the Commodore C64 and Commodore C128. This card was very useful if you had e.g. the Commodore SFD-1001 floppy which had only one IEEE-488 connector. But also the old CBM floppy drives could be connected to a C64 or C128. Since such hardware is getting rare and hard to get, I rebuilt the board.
IEEE-488 floppies for the CBM world are very rare and expensive. Why not just take a cheap VC1541 and expand it with an IEEE-488 connector, but without losing the serial IEC connector. With the TriMod CBM adapter the floppy can do both. It can be connected e.g. to a C64 via the serial connection, or e.g. to a CBM 8032 via the IEEE-488 connection.