[Coco] Re: [Color Computer] 3.5 inch disk drives and the CoCo

[Gene Heskett]

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
"There are four boxes to be used in defense of liberty:
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