Jay & Paul, Thank you both for your input here. This is extremely educational and valuable to me, and highly appreciated!
On Fri, Sep 1, 2017 at 5:03 AM, Jay Jaeger via cctalk <[email protected] > wrote: > The SHARE1 is on the plastic insert label designed for the purpose. > Usually it would be the IBM OS Volume Serial number. The pack in the photo > may have contained stuff that originated with the IBM SHARE user group, or > perhaps the pack was used on a drive shared between two systems. The > painted on number is unusual, and may be a Julian date, from 2005, perhaps > from a repair, though that would be pretty late for this kind of removable > disk pack. > > Packs like this were exposed every time the pack was mounted or dismounted > from the drive, when the cover was pulled off with the drive door yet to be > closed. Many such drives ran a set of brushes over the pack surface as > the drive spun up, before loading the heads. > > Sent from my iPad > > > > Sent from my iPad > > On Sep 1, 2017, at 02:25, Paul Birkel via cctech <[email protected]> > wrote: > > > > I'm afraid that I can't help. But I notice that in the upper-band of > the glare there appears to be a lot of speckling of the oxide surface. Is > this to be expected in a heavily-used disc-pack, or does it indicate > surface damage -- and if so then what are the likely causes? > > > > Also, was it usual to place markings/labels on the lower-ring like this > -- both what appears to be one that is painted-on "NEWUC:2005.47" as well > as the (plastic covered?) insert "SHARE1"? > > > > -----Original Message----- > > From: cctalk [mailto:[email protected]] On Behalf Of AJ > Palmgren via cctalk > > Sent: Friday, September 01, 2017 3:08 AM > > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: Re: IBM 3330 Drive > > > > For reference, here is a picture of the disk pack that I am wanting to > > read. > > > > http://bit.ly/2etUg30 > > > > I know, I got a bit nervous too when I saw the guy just holding it out > > exposed like that. Let's hope he put it back in the canister very > > carefully and quickly. > > > > Can anybody guess the correct model of disk pack from this single picture > > and angle? (Sorry, it's all I have to go on right now). > > > > Thanks! > > -AJ > > > > > > On Mon, Aug 28, 2017 at 11:16 AM, Tom Gardner via cctalk < > > [email protected]> wrote: > > > >> FWIW Paul Alan's Living Computer Museum has (or had) working PDP10's > using > >> DEC’s RP06's <http://opac.libraryworld.com/ > opac/catalog_edit.php?catalog_ > >> id=230824&from_doc=standard.php&position=43> which are very similar > to a > >> 3330-11 (they are Memorex 677's with a bolt on DEC controller). They > will > >> not mount a 3330 disk pack (3336) but they should mount a 3336-11 disk > pack > >> and probably spin it up but DEC’s fixed sector size will be an issue. I > >> seem to recall u could format IBM 3336-11 packs into the DEC format so u > >> might actually be able to scan a full track without reformatting > >> > >> > >> > >> I know of no operational 3330 or PCM equivalents (e.g. Memorex 3670, > >> ISS/Itel 7330, etc); the Computer History Museum purports to have one, > >> Catalog Number L2006.1.5 <http://www.computerhistory. > >> org/collections/catalog/L2006.1.5> , but it might be a -11. It > probably > >> would power up and u probably could get it to seek and read (u would > need a > >> simple controller) but getting access from the museum would be a > challenge. > >> > >> > >> > >> Good luck. > >> > >> > >> > >> Regards > >> > >> > >> > >> Tom > >> > >> > >> > >> -----Original Message----- > >> From: AJ Palmgren [mailto:[email protected]] > >> Sent: Sunday, August 27, 2017 9:42 PM > >> To: General Discussion: On-Topic and Off-Topic Posts > >> Subject: IBM 3330 Drive > >> > >> > >> > >> Does anyone here have good technical experience with, or even better > >> ACCESS to, an IBM 3330 compatible hard drive unit? (working or not). > >> > >> > >> > >> I'm getting more daring with my projects to attempt to read ancient > >> magnetic flux transitions off of things, and I might have an > opportunity to > >> read a disk pack for one of these beauties. > >> > >> > >> > >> I'm certain there are MANY obstacles to overcome with what I'm > suggesting, > >> and depending on what might be available, I'll tackle those one at a > time > >> as I cross those bridges. But for now, I'll just ask about the > hardware. > >> > >> > >> > >> -- > >> > >> > >> > >> Thanks, > >> > >> AJ > >> > >> <http://QICreader.com> http://QICreader.com > >> > >> <http://Point4iris.com> http://Point4iris.com > >> > >> <http://MightyFrame.com> http://MightyFrame.com > > > > > > -- > > > > Thanks, > > AJ Palmgren > > http://fb.me/SelmaTrainWreck > > https://www.facebook.com/profile.php?id=100010931314283 > > https://www.linkedin.com/in/aj-palmgren-4a085516/ > > > > -- Thanks, AJ Palmgren http://fb.me/SelmaTrainWreck https://www.facebook.com/profile.php?id=100010931314283 https://www.linkedin.com/in/aj-palmgren-4a085516/
