In the absence of a marking I would expect this to be a -1. See if u can find a 3336 model number. If there is no dash, then it likely predates the -11
Take a look at the other side of the pack. As I recall to prevent mis-mounts, there was a pin and socket arrangement in the -11 pack; a -1 top of spindle was small cylinder with a flat top, but the -11 top had a contour (raised socket?) that matched an inverse contour (pin) in the bottom of the pack (or maybe the other way around) so that it was impossible for -11 packs to be mounted on -1 drives and vice versa. I agree the label "Share1" means it is likely the CKD format. I suspect the speckling in the light band is just surface variations and has nothing to do with wear. Oxide disks were not very smooth when compared to today's metal film disks. Tom -----Original Message----- From: AJ Palmgren [mailto:microtechd...@gmail.com] Sent: Friday, September 01, 2017 12:08 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 < cctalk@classiccmp.org> 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:microtechd...@gmail.com] > 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/
