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General Category => Amstrad CPC hardware => Topic started by: protek on 07:18, 29 November 12

Title: My new 3,5" external drive
Post by: protek on 07:18, 29 November 12
I thought I'd share a pic of my new external 3,5" floppy disk drive. I got a Samsung SFD-321B, which is relatively easy to mod internally to have pin34 to be connected to RDY instead of DC. That minimizes the need for external jumpers. It's a matter of soldering a zero ohm resistor from one point to another, which I did.

Samsung doesn't have a solid bottom so you need to rise it a bit so that the spinner doesn't take contact with table or floor. I used four screws. I also made an adapter cable to be able to connect a standard 5V PSU. Next step is to find a suitable case for the mechanism and possibly connect a switch between DS0/DS1. At the moment it is DS1 as from the factory so it operates as B drive.
Title: Re: My new 3,5" external drive
Post by: Bryce on 09:20, 29 November 12
There are quite a few Amiga external drives that have a very compact metal case, basically just wrapping the drive. You can usually get them quite cheap, especially if they are non-functioning. That's what I have mine in.

Bryce.
Title: Re: My new 3,5" external drive
Post by: protek on 09:29, 29 November 12
I have such a defunct drive stashed - somewhere. It's one of those RF332C units or similar. But isn't the mechanism used in those even slimmer than a standard 3,5" floppy drive?
Title: Re: My new 3,5" external drive
Post by: Bryce on 10:52, 29 November 12
That depends exactly what version you have. As you can see from this picture here: http://img98.imageshack.us/img98/4930/p5240083.jpg (http://img98.imageshack.us/img98/4930/p5240083.jpg)

There were several versions of varying height. Mine just happens to be one that was large enough for a standard 3.5in drive.

Bryce.
Title: Re: My new 3,5" external drive
Post by: protek on 11:01, 29 November 12
I think both of mine are like the second on the right.
Title: Re: My new 3,5" external drive
Post by: fgbrain on 19:15, 29 November 12
Anyone can suggest a compact case that will fit two switches (side and drive select )  at the front?
That's my main problem!
Title: Re: My new 3,5" external drive
Post by: Bryce on 10:15, 30 November 12
How about an Amiga drive from GoldenImage. They have a small panel on the left side. But they are difficult to find.
There's nothing behind the panel. It's there because there was a more expensive version with a Track Display there.

Bryce.

Edit: This one: http://thebucketdiary.files.wordpress.com/2011/07/frontviewdrive.jpg (http://thebucketdiary.files.wordpress.com/2011/07/frontviewdrive.jpg)
Title: Re: My new 3,5" external drive
Post by: Gryzor on 16:37, 04 December 12
This would look good next to the Plus series...
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