Wanted 720k 3.5" Floppy Drive

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davemurgtroyd

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As per title I am looking for a 3.5" 720k floppy drive for a PC. I have numerous 1.44Mb dives but DD discs formatted at 720k in them are very unreliable when using them in a very old 8086 PC with built in 720k drive.
 
Many thanks for the offer but if it has a card reader then it is 1.44MB. I have dozens of 1.44 MB floppy drives but the problem I have is that although 1.44MB drives will write 720k discs reading them in a 720k drive is very hit and miss (probably down to double width read heads compared to 1.44MB drives.
 
I have several from old PC's that I have recycled that you can have,(I would have to check to see if they are 720 or 1.44) but the postage $$ from the US to you may kill the project.
 
Terryl said:
I have several from old PC's that I have recycled that you can have,(I would have to check to see if they are 720 or 1.44) but the postage $$ from the US to you may kill the project.
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Thanks for the offer but unless those PCs were early 486s or older then it is unlikely that any of the drives are 720k.

However I think I may have another solution - 8086 is a Sinclair PC200 and has external plugin floppies - a 3.5 and a 5.25 - and I have found a working tower PC (486) with I believe a working internal 5.25 drive. So I now merely have to find my 5.25 floppy discs.

The PC200 is a very unusual PC built in case like an Amiga (see attached video) and Binary Dinosaurs - Sinclair PC200.
It has CGA monitor and RF UHF output to connect to a TV, standard RS232 and Centronic outputs. The two internal 8 bit ISA expansion slots (NOT 3 as stated in video) are accessed via a hinged flap on top of PC. I have a couple of 8087 co-processors to fit.

Resurrecting this PC may well surpass Vipersan's retro resurrection :D

 
I wonder if any of the ancient IBM POS systems we have in work that we binned today have one, these are ancient.
Will check tomorrow if I remember. (I work for a company that services POS equipment)

I think they might be Model 4683 or similar, I know they are very old.
 
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