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I remember using 8" and 5.25" diskettes on the 400 but not 3.5". We also had two types of reel tape drives and several types of cartridge drives that we used on an old white box. We did a lot of data conversions from other systems and needed to be able to read whatever type of media they sent to us.
Paul Bouwhuis On Friday, May 21, 2021, 12:19:17 PM MDT, Holger Scherer <hs@xxxxxxx> wrote:

Hey, we do have a 9348 connected using 2749 HVD SCSI to a 9406-170.
At least 3 years ago i made a save21 and IPLed from the reel tape.

It’s a very important part of our museum to show the kiddies the
difference to a 128GB USB thumb drive :)

-h



------ Originalnachricht ------
Von: "Larry \"DrFranken\" Bolhuis" <midrange@xxxxxxxxxxxx>

The most common early unit was 1600 and 3200 BPI (the later not a standard density)  It had a smoked color plastic door that you really couldn't see through. The control panel was terrible and it was so unreliable it was referred to as the '9347 piece of shit.'  IBM replaced the planar board in ours half a dozen times. It was not an IBM manufactured drive.  The 9348 replace it and it did 1600 and 6250 BPI. (It could not read the 3200 BPI tapes)  It was fabulously more reliable and the same size as the older unit. Tapes in these were slid into the front like a pizza.



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