Was the Amiga A1200 rev2b motherboard designed by AT?

[Sim085]

While going through this thread I found the following information;
http://eab.abime.net/showthread.php?t=39137

"The 2B (Atechnologies) is a bastardisation of the 1D4 & 1D3. I'd choose either 1D1 or 1D4 (final commodore revision before they went pop)"

"I've got an Amiga Technologies A1200 which has a PAL rev. 1D4 board. They must have been using up old Commodore stock before they started using their own rev 2Bs."

However I cannot understand how this can be true given I have two rev2b's motherboards that are badged "Commodore". One of them I am also sure that came within an A1200 Commodore case. An example of such a motherboard can also be seen on the Amiga Hardware Database;
https://amiga.resource.cx/photos/pho...res=hi&lang=en

So was the A1200 rev2b really an Amiga Technology designed board? Or was it always a Commodore board and indeed produced and even sold by Commodore?

[DJBase]

No, it was all designed by Commodore. Amiga Technologies just re-branded it later.

[Sim085]

Thank you.

Wonder from where the 'rev2b was designed by Escom' came from.

Originally Posted by DJBase

No, it was all designed by Commodore. Amiga Technologies just re-branded it later.

[UberFreak]

There are plenty of Commodore branded A1200 out there with rev 2B (I have a few), so definitely designed by C=.

[ma693541]

One of the later A1200 Revisions came with an internal HD floppy drive if my mind remember it right.

[Matt_H]

Originally Posted by ma693541

One of the later A1200 Revisions came with an internal HD floppy drive if my mind remember it right.

(Some? All?) Escom/AT 1200s shipped with a modified PC HD floppy drive and some minor motherboard modifications to adapt it for Amiga use. I think it only functioned as a DD drive, though, and was infamously incompatible with some disk-based copy protection schemes, rendering some games unplayable. No 1200s ever shipped with an Amiga HD floppy drive (unless a dealer installed it for the customer).

[ma693541]

Originally Posted by Matt_H

(Some? All?) Escom/AT 1200s shipped with a modified PC HD floppy drive and some minor motherboard modifications to adapt it for Amiga use. I think it only functioned as a DD drive, though, and was infamously incompatible with some disk-based copy protection schemes, rendering some games unplayable. No 1200s ever shipped with an Amiga HD floppy drive (unless a dealer installed it for the customer).

That was what I meant.

[Matt_H]

Originally Posted by ma693541

That was what I meant.

[Sim085]

I had one like those as well; but I was not the original buyer, so I never knew if this was a Commodore sold A1200, or someone just built it from parts, or even maybe sold by Escom with Commodore badges (old stock?).

Originally Posted by UberFreak

There are plenty of Commodore branded A1200 out there with rev 2B (I have a few), so definitely designed by C=.