22 Sep
2022
22 Sep
'22
1:37 p.m.
That's how Cromemco shipped their distribution disks, with both holes and a
sticker to cover the unused hole with arrows on it to show which way was
which.
m
On Thu, Sep 22, 2022 at 4:32 PM Fred Cisin via cctalk <cctalk(a)classiccmp.org>
wrote:
On Wed, 21 Sep 2022, Eric Smith via cctalk wrote:
>> They didn't deal with it at all. It
didn't work. No normal 8-inch
>> floppy disks have both index holes in the jacket. If you convert a
>> disk from SS to DS, or vice versa, by punching the other index hole in
>> the jacket, you have to cover the original, unless you're going to use
>> it in a drive that has only one index sensor (typically an SS drive).
On 9/22/22 12:04, geneb via cctalk wrote:
> I've got at least three boxes of NOS
Dysan disks with both of those
> index holes present, so they certainly were made commercially.
On Thu, 22 Sep 2022, Chuck Guzis via cctalk wrote:
Yup. I've got similar NOS ones also.
Since those are not "normal", or at least uncommon, please send one such
disk to Eric for his collection of odd stuff.
It would have made sense for a drive with both sensors to have jumpers,
that could, if needed often, be wired to a switch.
When I repunched 8" disks, I put a write-enable tab over the old hole.
--
Grumpy Ol' Fred cisin(a)xenosoft.com