[vcf-midatlantic] Bernoulli Drives needed in working condition
Dave McGuire
mcguire at neurotica.com
Tue May 18 15:26:29 UTC 2021
On 5/18/21 11:16 AM, Ethan O'Toole wrote:
>> Those are the earlier ones, 8" disks 10MB and 20MB. Looking at that
>> board on eBay the memories are starting to come back. ;) There are a
>> few different interfaces; the one you referenced above is the better
>> one, with some buffering. Any of them should work I think. I remember
>> that I used several different models on the 8" drives over the years.
>
> Ah I never saw the 8" ones, jsut the ones that were probably like 5.25"
> or so.
"More of the same", except the cartridges were rectangular. They came
in 10MB and 20MB varieties. They worked great, and were surprisingly
reliable.
>> Incidentally, I currently use a pair of 44MB SCSI Bernoulli drives on
>> my personal PDP-11/34 (here at home, not at LSSM) interfaced via a
>> Unibus SCSI host adapter. I run RT-11, RSTS/E, and RSX-11M that way.
>> Works a treat, and it's very handy for healing the soul when something
>> stresses me out.
>
> Awesome! The 44Mb (and maybe 88Mb?) ones I dealt with were as a young
> lad working at a government contractor on a Navy base. The command there
> used them for the secure messaging computers. They would toss the
> classified ones in the safe and have me fix the unclass one, write down
> what I did then do the same on the classified ones.
Neat! At work we had a few 20MB 8" drives, and a rather vast number
(hundreds) of 44MB 5.25" drives, all over the place. The FSO had
shelves in the vault that held nothing but 5.25" Bernoulli
disks...thousands of them.
> When I was young DOS kid I always thought the removable cart "hard
> drives" seemed better than a normal hard drive because ou could expand
> it. Didn't know about access times. Later had a zip drive, they were cool.
Very cool.
> I still have a few Zip drives and a Jaz drive somewhere, freebs picked
> up along the way years later.
Great stuff, those Zip drives. The Jaz drives are garbage. I never
had any, but all of my friends did, and they all hated them.
> I did have a SCSI 100Mb zip in a music sampler box that click of deathed
> on me when I needed it the most.
I must be the only heavy use of Zip disks that never had that happen.
With over a dozen drives at one point, and hundreds of disks. On Macs,
PeeCees, PDP-11s...I've had a few disks that never worked (formatting
errors) but, by and large, if they worked, they worked forever. And the
only time I ever lost a drive is when it got rained on.
> Young and dumber (maybe) I had sampled a few clips from the movie
> "Contact" of the little girl saying like "CQ CQ this is blablabal" and
> what not. On the EMU sampler you didn't need midi device to drive it,
> there was 10 number buttons on the front you could assign it to. So I
> assigned these girl-on-the-ham-radio samples to the buttons, threw it in
> the car with something programmed to xmit on the hamfest repeater freq
> and an inverter... with the idea I would toy with the hamfest hams and
> give them some excitement. Arrive to the Virginia Beach hamfest and sure
> enough the zip drive click of deaths on me. It was never ment to be.
Probably because it knew you were trying to mess with people. ;)
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
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