External Drive cable

[T-Man]

This is an external 3.5 inch drive, model number is consistent with 800K. The cable was cut off but it does work as I've tested it with the cable from a 400K external drive. I want to build a cable and have a 20 pin ribbon cable and have ordered a 19 pin male DB connector. Is this a straight through pin 1 to pin1, pin 2 to pin 2, etc cable?

I am tempted to use my floppy emu the cable as it has the right DB and flat cable connections but I don't want to ruin anything.

 

[T-Man]

I can confirm the cable on this drive can be replaced with this Apple Iic to Apple Disk II cable and it does work on a Macintosh SE.......this drive should work on both an Apple IIe and Apple IIgs, however, still haven't tried it as fairly paranoid about compatibility/damage particularly after googling information on the IIgs.

Apple IIc To Apple Disk II Cable 3' - IEC

Apple&#8482 IIc To Apple&#8482 Disk II Cable 3'

iec.net

Does anyone out there have a clue as to whether it should be a problem with the Apple IIgs?

Innovative Electronics & Computing sells a lot of older cables at great prices....saved me from an afternoon pf building an Apple II duo drive cable AND they had a Commodore 128 monitor cable (to CGA). Check them out.

Custom Cables, Computer, Audio, Video, Telephone Cables & Accesories | IEC

All of your connectivity needs in one place! Cables (including custom cables) and Accessories for Computer / Audio / Video / Telephone

iec.net

 

[retr01]

The IIGS uses the standard DB-19 female floppy connector as well as Apple and other disk drive controller cards for the Apple II series.

I am going to look into the pin-outs.

 

[retr01]

As for the pin-outs, review the following:

External 800K 3.5" Disk Drive DB19 pin-outs​

As for the pin-out illustration, it is my understanding that the Apple IIGS, the Macintosh, etc differ slightly.

Let's see if someone else on Tinker Different can help out.

 

[T-Man]

Yes...I've seen some dire warnings as far as using an external from a Macintosh on the IIgs, however the unidisk is OK....but not sure now that I've changed the cable.