Disk imaging with IMD - question

rich.cini at verizon.net rich.cini at verizon.net
Wed Aug 9 13:52:17 CDT 2017


Thanks Chuck. The Gazelle uses the Tarbell DD controller which uses a 1793 which I believe is 3742 and s/34 compatible. 

Rich

Sent from Verizon/AOL Mobile Mail

On Wednesday, August 9, 2017, Chuck Guzis via cctalk <cctalk at classiccmp.org> wrote:

On 08/09/2017 10:57 AM, Richard Cini via cctalk wrote:

> "DON'T ASSUME..." AS THEY SAY ON TV. I'M OK WITH THE ADDITIONAL CLARITY. SINCE YOU HAVE A WORKING 242, WOULD YOU MIND CONFIRMING THE JUMPER SETTINGS FOR ME? JUST TRYING TO ELIMINATE AS MANY POTENTIAL ERROR POINTS. 

I had a look and a mental fart. I have the 842--the full-height model.
I suspect that the jumpers are completely different.

If you can use IMD to format both FM and MFM at 500Kbps on your 242--and
"Analyze" reads the format okay, your SCP disks aren't probably standard
IBM 3740 or System/3 type diskettes. They could be in a proprietary
recording format, such as Intel MMFM or Futuredata GCR.

--Chuck




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