Re: Replacement drive mechanism for 1581

From: Mike Stein <>
Date: Tue, 23 Aug 2016 13:32:24 -0400
Message-ID: <D39B39320B0F45CE8F6762B7EE654170@310e2>
----- Original Message ----- 
From: "André Fachat" <>
To: <>
Sent: Tuesday, August 23, 2016 12:50 PM
Subject: Re: Replacement drive mechanism for 1581

> Not sure how much actual info you can take out of it but some years ago I 
> had built a vc1581 replica with a PC drive. I don't remember the details 
> but maybe comparing schematics gives some more info.
> Sorry for the late chime in...
> Cheers
> André


Looks like you used a PC-type twisted pair for dual-drive motor control capability, but with the drives reversed so that a single drive would use a straight cable; makes sense.

I suppose on a PC they did it the other way so that the terminating resistors would always be on the cable end, even if using a dual drive cable with a single drive, but that's not particularly relevant in a 'custom' 1581 and not usually an issue anyway in the 'real world' (at least with floppies as opposed to hard drives).


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Received on 2016-08-23 18:00:40

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