Hello! Christian Dirks wrote: > So it was you who bid me out ... ;) Oops, sorry. I started buying stuff again, so watch out for me! ;-) > I wanted to see how the internal floppy drive works. It is labeled "SMD-150". From what I was able to found on the net, it's a floppy drive made by Epson, single sided, single density, 180kB capacity. I didn't even know that single sided 3.5" drives existed? And why someone would put such a low capacity drive on this mighty machine? There is a 13-wire makeshift ribbon cable connected to the drive. This might be a subset of a Shugart connector with only required signals. On the other side it plugs into a small PCB attached to the expansion connector. On the PCB there is an EPROM, a SAB2793B floppy controller, two TTL chips and several discrete elements. I'll try to dump the EPROM later. A 4-pin connector is also soldered instead of the extra (otherwise unused) power connector from the power supply and it powers the floppy. > 'Elektronikladen Detmold' still exists: http://elmicro.com/ > Maybe someone there knows about the 'GDP 64K' ? Thanks for the pointer, I'll send them email :-) Regards, Michal Pleban Message was sent through the cbm-hackers mailing listReceived on 2013-06-14 17:00:08
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