The Signetics TWIN system uses massive 8 inch floppies. It came with two floppies, but for experimentting I need more. From Ebay I managed to buy three of those from a seller in Italy. Looking forward to working with them: they can hold a massive 315 kilobyte per floppy!
A newer 5 1/4 inch floppy for scale:
![I bought 8″ floppies :-)](https://ztpe.nl/2650/wp-content/uploads/2023/12/095aaa97f60ecb11.jpg)