[Coco] Re: [Color Computer] 3.5 inch disk drives and the CoCo
Gene Heskett
gene.heskett at verizon.net
Thu Aug 31 02:21:21 EDT 2006
On Thursday 31 August 2006 00:08, James Diffendaffer wrote:
>Just a followup to some earlier discussion on the list.
>
>I checked and the Atari ST apparently uses a parallel disk drive
>interface. If you can find the pinouts to that odd round connector or
>figure them out you should be able to use the Atari external drives.
>I'm guessing you'll also need a power supply for them.
>
>The Amiga externals should also work. People have used them on
>Spectrums and some other 8 bits. They use a possibly hard to find 23
>pin D connector. They also need a power supply. I don't know if the
>pass through will work properly or not.
I should point out that the sync signals from the amiga should not be
terminated, else the agnus chip sees too high a load and shuts itself
down. There were ttl buffers molded into the db23's end of the cables
commie sold. Your mods above do essentially the same thing for the gime I
think.
>The 720K TEAC drives I am useing have a drive select on the circuit
>board in the form of a jumper block that looks like a surface mount
>resistor. With some patience and a decent soldering iron the jumper
>can be changed so it acts as drive 0. It's VERY small and I don't
>know if other drives will have the same thing.
--
Cheers, Gene
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