Re: CBM 8060 series (8061 and 8062)

From: Ethan Dicks <>
Date: Wed, 7 Sep 2011 12:24:59 -0400
Message-ID: <>
On Wed, Sep 7, 2011 at 11:54 AM, Hoffmann-Vetter, Martin
<> wrote:
>> The original, virtually unknown 8060 was a single drive
>> that stored 750K per disk;
> Does anyone have seen a 8060?

I have not seen any Commodore 8" drives in person (though I'd love to
have one).  Even when my daily-use computer was a PET (1979-1983), I
knew all about Commodore's 5.25" drives but had never heard they ever
made 8" drives.  It wasn't until I was browsing the firmware
directories on funet that I learned of them.

>> the later 8061, 8062 and 8280 were all dual
>> drives and could read IBM 3740 as well as Commodore GCR format.
> Does that mean, the 8060 can't read the IBM 3740 format?

The IBM 3740 format is nominally 250KB (single-sided, up to 77 tracks
of 26 sectors of 128 bytes), so it suggests that a single drive that's
capable of 750KB, even allowing for double-sided media, isn't a
3740-compatible format.  Other than that, I have only that declaration
to go on for media compatibility (or lack thereof).

As long as the drive mech is 48 tpi and the read/write circuitry can
handle FM data, I would think that the limitation could be
firmware-related.  If those hardware conditions are not so, then it's
likely that there's a hardware issue at work here.

>> and the 8280 1MB.
> Okay, this drive is not so interesting, because a own it.

Do you have any pictures (especially of the inside)?


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Received on 2011-09-07 17:00:03

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