They were switchable. There are some USB adaptors on Ebay...
Dave
G4UGM
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at
classiccmp.org] On Behalf Of Zane
Healy
Sent: 10 October 2015 01:18
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject: Re: WTT: My Amiga Mouse for your Atari ST Mouse!
FYI, you used to be able to get a mouse that would work on either Atari or
Amiga. I don't know if you still can. There are people that specialize
in
selling
Atari gear.
Zane
On Oct 9, 2015, at 4:30 PM, ethan at
757.org wrote:
Looking for an Atari ST mouse, have an extra
Amiga mouse to trade?
Also looking to buy a 520ST power supply to complete a system if anyone
knows of
extras.
>
>
>
> --
> Ethan O'Toole
>