IBM 3174 C 6.4 Microcode Disks?

Al Kossow aek at
Fri Feb 15 16:59:58 CST 2019

On 2/15/19 3:04 AM, Dave Wade via cctalk wrote:

> 2) have microcode. Al says he got some from them
> recently. I can copy the latest version but I am short of 2.4MB disks
> (and in th uk)

They have many revs of the firmware. I bought two, the last for the hard-disk
supported 3174, and a set for an early 81R

2.4mb floppy media is unobtainium. I did ask if they had any.

I bought a 91R to experiment with figuring out more about running the drives
in ED mode, but have been busy with dealing with media recovery.

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