MSD SD2

mike351 · Posted: Fri May 18, 2012 4:25 pm Post subject: MSD SD2

Hi everyone,

I was reading through some old RUN magazines and came across advertisements for the MSD SD2 disk drive. The add says "SD2 can be configured as two single drives or one dual".

Does anyone know how to do this?

I have read the scanned manual on bombjack and it makes no mention of any commands or jumpers for this purpose.

Mike

sjgray · Posted: Fri May 18, 2012 5:00 pm Post subject:

I have never heard of that, and im sure it would be in the manual if it was possible. There is jiffydos available for it, as well as an autocopy rom.perhaps this was a feature of one of those?

I have a couple msd sd2 units, and could test if more info is discovered.

Steve

boulderdash · Posted: Fri May 18, 2012 11:56 pm Post subject:

well you can access ea drive separately its drive 0 and 1
so you can have 2 different disks and pretend its 2 drives
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mike351 · Posted: Sat May 19, 2012 3:28 am Post subject:

sjgray wrote:

I have never heard of that, and im sure it would be in the manual if it was possible. There is jiffydos available for it, as well as an autocopy rom.perhaps this was a feature of one of those?

I have a couple msd sd2 units, and could test if more info is discovered.

Steve

Perhaps, however there is no mention of any such additions and was JiffyDos even available back in 1984? The add was from a company called Southern Cal Micro and appeared in the April 1984 edition of RUN.

Mike

mike351 · Posted: Sat May 19, 2012 3:30 am Post subject:

boulderdash wrote:

well you can access ea drive separately its drive 0 and 1
so you can have 2 different disks and pretend its 2 drives

Well yeah you could Smile

However the advertisement says exactly what I posted in my original message and it's pretty clear.

Does anyone have an original manual for the drive scanned inti PDF?

Mike

LordCrass · Forum Junkie Joined: 04 Jan 2002 Posts: 520

I have an SD-2 and have never seen a way to access it as two separate devices (ie. a device 8 corresponding to unit 0 and device 9 corresponding to unit 1).

I have a scanned manual in PDF format, it's exactly the same as the manual (OCR'd with some image files) here on Ray Carlsen's page.

mike351 · Posted: Sat May 19, 2012 4:31 am Post subject:

I have an SD2 also and like you have never seen a way to make it behave as two drives. Long ago when I was researching them and looking for one I never came across this information either. Maybe it was a planned feature which never made it in to production and Southern Cal forgot to pull it out.

Somewhere I remember seeing a review of this drive so I might see if I can find it and see what is mentioned there.

Can I get a copy of the PDF version of the manual. I would rather that than the text copy on Ray's website.

Mike

cdawe · Posted: Sat May 19, 2012 2:14 pm Post subject: Question

Is the IEEE connection that was on those drives of a type that could be used with the XAP cables (and nibblers for PC connections via the parallel port)?

C.

boulderdash · Posted: Sat May 19, 2012 6:27 pm Post subject:

i need to go read that issue
got 1 msdsd2 set with auto copy roms it may be cool to take another of mine and set it as 2 drives
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mike351 · Posted: Sun May 20, 2012 6:38 am Post subject:

There were a few adds by this company in the early RUN mags. I'm slowly going through them, for me, half the enjoyment of reading these mags is the old adverts.

Mike

mike351 · Posted: Sun May 20, 2012 6:48 am Post subject: Re: Question

cdawe wrote:

Is the IEEE connection that was on those drives of a type that could be used with the XAP cables (and nibblers for PC connections via the parallel port)?

While I am not familiar with the XAP cables I doubt that it was intended for use with the IEEE connector on any such drive.

The IEEE connection is a fast parallel data port that was used on the Pet and CBM series machines, and could be connected to the Vic-20/C64 using a special interface cartridge

As far as I am aware the only interface that can make use of the IEEE port on such a drive is the Zoomfloppy sold by Jim Brain.

Mike

mike351 · Posted: Sun May 20, 2012 6:51 am Post subject:

Oh yeah, and do you think I can find that MSD review again?! Nope.. Guess it was just a random magazine I clicked on after loading them all onto my NAS drive. I was a little happy after copying the 20 or so CDs of magazines I bought on to my NAS drive and started randomly reading the odd mag before I decided I pick a publication and start from first to last edition, which at the moment is RUN Smile

Mike