Re: 3174 disks

The drive is probably double sided double density.

Quite rare.An old friend of mine gave me an 8" drive that came from a 4300.
It was used to load micro code. Quite possibly used the same format.



On Sat, Jun 29, 2019 at 3:41 AM Benjamin Huntsman
BHuntsman-KAweP20W6/[email protected] [hercules-390] <hercules-390-hHKSG33Tihh9OS/[email protected]>
wrote:

>
>
> Hi there!
>
>    I've seen it discussed a few times, but no definitive answers that I
> could piece together...
>
>    Has anyone on here successfully read or duplicated a 3174 diskette on a
> regular computer?  If so, can you tell me what hardware, drive, and
> software you used?
>
>
>    I'm trying to resurrect my old 3174 and get my 3290 running, and I'm
> really hoping to know for sure:
>
>
>
>    1.  What format are the 3174 disks?  I know they're 2.4MB drives, but
>    are the floppies actually 2.4MB?
>    2. Will the 3174 read a regular 5.25" floppy?
>
>
>    From a historical perspective, does anyone know anything about the
> workflow or tools used in how IBM developed the 3174 and it's microcode?
>
>
> Thanks much as always!
>
> 
>


-- 
Wayne V. Bickerdike