Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Just FYI that dual 7970 has been reduced to $679 OBO... -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Wed, Oct 18, 2017 at 10:54 PM, Chuck Guzis via cctalk < cctalk@classiccmp.org> wrote: > On 10/18/2017 06:19 PM, Jon Elson wrote: > > > Yes, I had a 3500 Lb lathe shipped from NJ to MO

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

On 10/18/2017 06:19 PM, Jon Elson wrote: > Yes, I had a 3500 Lb lathe shipped from NJ to MO for $600 (although that > was some years ago.) > I had a 1700 Lb pick and place machine shipped from Boston to MO for > somewhat less than that. > FedEx and UPS have arrangements for boxes up to 170 LBS, I

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Jon said, .or have your own fork lift. ...just gotta love these primordial computers :) Forklift! :) Regards to the List, Jack -- Jack Harper, President Secure Outcomes Inc 2942 Evergreen Parkway,

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

On 10/18/2017 11:47 AM, Chuck Guzis via cctalk wrote: On 10/18/2017 09:12 AM, Jack Harper via cctalk wrote: Possibly... :) Freight charge to get one from the Washington, DC area to Colorado is about $700 USD - and that is by Donkey :) Anders, I have been monitoring the one in the DC area -

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Jack said > Good points all and I appreciate the input. > > The $700 freight is what the eBay seller near DC quoted by e-mail. Having it palletised definately sounds the safest option, but for "cheap and cheerful" I have found removalists wanting a backload to be pretty good. However that's

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Good points all and I appreciate the input. The $700 freight is what the eBay seller near DC quoted by e-mail. Regards, Jack At 10:47 AM 10/18/2017, Chuck Guzis via cctalk wrote: On 10/18/2017 09:12 AM, Jack Harper via cctalk wrote: > > > Possibly... :) > > Freight charge to get one from

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

On 10/18/2017 09:12 AM, Jack Harper via cctalk wrote: > > > Possibly... :) > > Freight charge to get one from the Washington, DC area to Colorado > is about $700 USD - and that is by Donkey :) > > Anders, I have been monitoring the one in the DC area - the freight > cost alone is "large."

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Heh, I'd love to know how people transport huge card sorters and such (or if those are only acquired by museums with funding). =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Wed, Oct 18, 2017 at 12:12 PM, Jack Harper via cctalk < cctalk@classiccmp.org> wrote: > > > Possibly... :) >

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Possibly... :) Freight charge to get one from the Washington, DC area to Colorado is about $700 USD - and that is by Donkey :) Anders, I have been monitoring the one in the DC area - the freight cost alone is "large." Regards to the ZList, Jack At 05:36 PM 10/17/2017, David Collins

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Pretty expensive to ship one from Australia I guess... David Collins > On 18 Oct 2017, at 6:34 am, Jack Harper via cctalk > wrote: > > > Greetings to the List - > > Does anyone know of a HP 7970 (any model) tape drive that might be > available > > Any leads

HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Greetings to the List - Does anyone have a copy of the text of the actual ISO 1863 standard that defines, I think, the formatting of the ancient 1/2" magnetic tapes??? I am interested to understand better the format of the calculated LRC at the end of tape blocks, sync signals, record gaps

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

On 10/13/2017 09:46 PM, Chuck Guzis via cctalk wrote: On 10/13/2017 06:27 PM, Jon Elson via cctalk wrote: For 800 BPI I have most of this in my head, if you have any specific questions. (I wrote up a mostly software read/write interface for 800 BPI NRZi mag tape many years ago on a CM/M

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

On 10/13/2017 06:27 PM, Jon Elson via cctalk wrote: > For 800 BPI I have most of this in my head, if you have any specific > questions.  (I wrote up a mostly software read/write interface for 800 > BPI NRZi mag tape many years ago on a CM/M system.) > > 800 BPI is a VERY simple format. ...and

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

On 10/13/2017 03:00 PM, Jack Harper via cctalk wrote: Greetings to the List - Does anyone have a copy of the text of the actual ISO 1863 standard that defines, I think, the formatting of the ancient 1/2" magnetic tapes??? I am interested to understand better the format of the calculated

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Well, amazing Chuck - I looked and looked and looked and I appreciate it. Thank You. Anders and Paul, I appreciate the input - and the other HP documents. More the better! :) Regards, Jack At 02:58 PM 10/13/2017, Chuck Guzis via cctalk wrote: On 10/13/2017 01:34 PM, Paul Koning

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

On 10/13/2017 01:34 PM, Paul Koning via cctalk wrote: > ISO standards are sold for actual money, so a real copy may be hard > to find. You may be better off looking for an old computer company > document. The HP document Anders mentioned might work; IBM also has > several documents that are

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

> On Oct 13, 2017, at 4:00 PM, Jack Harper via cctalk > wrote: > > > Greetings to the List - > > Does anyone have a copy of the text of the actual ISO 1863 standard that > defines, I think, the formatting of the ancient 1/2" magnetic tapes??? > > I am interested to

Re: HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Chuck sent me this: http://bitsavers.informatik.uni-stuttgart.de/pdf/hp/tape/MVD-014_introToMagTap_Apr71.pdf =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Fri, Oct 13, 2017 at 4:00 PM, Jack Harper via cctalk < cctalk@classiccmp.org> wrote: > > Greetings to the List - > > Does

HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive...

Greetings to the List - Does anyone have a copy of the text of the actual ISO 1863 standard that defines, I think, the formatting of the ancient 1/2" magnetic tapes??? I am interested to understand better the format of the calculated LRC at the end of tape blocks, sync signals, record gaps

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

> https://youtu.be/rAsLwcq4RNU (fixing a loading fault on the tape drive) Although I love the HP 7970E dearly and want to encourage you to try your luck at it, that was a lot of work to get it to work on something it wasn't meant for. You'd have a much easier time bringing up a SCSI based tape

RE: (Classic Computers) HELLO JAY - HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Hello Jay - I have been a bit under the weather here - thus, the delay in responding. I am the guy that contemplates seeing if I can get an HP7970 tape drive up and running with a 68000 box. You mentioned that you have a 7970B that you "should get rid of." Might you be interested to sell

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Marc, On Sunday, October 8, 2017 at 11:48, CuriousMarc wrote: > Thanks, I wasn't aware of this subtlety. You're welcome. > But this is for the 7970E only, right? Right. > Can you boot a 21MX from a 7970B tape with the standard boot ROM? Yes. The boot ROM data transfer loop is just a

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Bryan via cctech Sent: Friday, October 06, 2017 11:11 AM To: Classic Computing List Subject: RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive On Tuesday, October 3, 2017 at 20:58, Jay West via cctalk wrote: > Wasn't there some deal where a M/E/F could drive it

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

On 2017-10-05 17:37, Jack Harper via cctalk wrote: I appreciate the description of your STM32F407 machine - makes sense and gives me hope that I can replicate the functionality in the 68K world. What 68k machines do you have there, you like to attach to the 7970? Cheers

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

...@secureoutcomes.net] Sent: Thursday, October 05, 2017 4:47 PM To: Curious Marc; cctalk@classiccmp.org Subject: Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive Marc - I certainly do know you from your great YouTube videos. Because of the video on the Overland Data dri

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

On Tuesday, October 3, 2017 at 20:58, Jay West via cctalk wrote: > Wasn't there some deal where a M/E/F could drive it at 45ips but a 2100 > couldn't (next lower speed)?? You might be thinking of the limitation regarding the use of the 12992D Magnetic Tape Loader ROM with a 1000 M-Series and a

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

t; <https://youtu.be/rAsLwcq4RNU>https://youtu.be/rAsLwcq4RNU (fixing a >> loading fault on the tape drive) >> >> Although I love the HP 7970E dearly and want to encourage you to try your >> luck at it, that was a lot of work to get it to work on something it wasn't

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

ve a much easier time bringing up a SCSI based tape. Marc Subject: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive Question: Anyone have experience talking to a 7970 tape drive from something other than an HP computer - something that does not have HP-IB??? How is tha

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Chuck - Great information! E.g., connectors from Anchor Electronics/San Diego - I have been wondering about primordial connectors. I appreciate the description of your STM32F407 machine - makes sense and gives me hope that I can replicate the functionality in the 68K world. I do have a

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Hello to Everyone that replied to my post on the HP7970 Tape Drive. I very much appreciate the advice and counsel. Sorry for the delay responding, I had a medical procedure that knocked me back a bit - nothing serious, just mostly irritating (the ENT Doc injected 25ml of a liquid steroid

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Jay, if you have any scanned HP manuals that you don’t think are on line, I’d be happy to post them up on the HP Computer Museum site, giving credit where it’s due of course! David Collins > On 5 Oct 2017, at 8:10 am, Chuck Guzis via cctalk > wrote: > >> On

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

On 10/04/2017 12:17 PM, Jay West via cctalk wrote: > On 10/3/17 7:24 PM, Chuck Guzis via cctalk wrote: >> Al has a bunch of 7970 stuff on bitsavers, but not, I think (I could >> be wrong) the manual specific to the B and C models. > > I do have a chunk of HP service manuals (pretty sure 7970

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Al, while I can’t rescan the thousands of documents already in the HP Computer Museum’s website and leave off the Australia stamp, I can assure you any future documents will be scanned as originally printed. I am in the process of sifting through many pallets of old duplicate HP manuals that

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

On 10/3/17 7:24 PM, Chuck Guzis via cctalk wrote: > Al has a bunch of 7970 stuff on bitsavers, but not, I think (I could > be wrong) the manual specific to the B and C models. I do have a chunk of HP service manuals (pretty sure 7970 included) that are in electronic format but have never made

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Re: 7970's with HP-IB support I had written…. I've never once seen that option in the wild though To which Ed# replied... YES! hp 30  series  3000  systems and 40  series  had   hpib  1600 bpi 7970e  in early days. Generally, there are far more 2100/21MX systems still around

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

On 10/3/17 7:24 PM, Chuck Guzis via cctalk wrote: > Al has a bunch of 7970 stuff on bitsavers, but not, I think (I > could be wrong) the manual specific to the B and C models. I still have several tubs of HP manuals that I haven't gone through and I remember there were several revisions for the

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

drive) Although I love the HP 7970E dearly and want to encourage you to try your luck at it, that was a lot of work to get it to work on something it wasn't meant for. You'd have a much easier time bringing up a SCSI based tape. Marc Subject: (Classic Computers) HP 7970 1/2" 9-

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

YES! hp 30 series 3000 systems and 40 series had hpib 1600 bpi 7970e in early days. later they had other drives that would go 6250... and I wish I had one to load the old bulleting board email chat software up on the hp 3000 37 I have here. later dried

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

On 10/03/2017 06:58 PM, Jay West via cctalk wrote: > HP manuals of the period are awfully detailed. They all have the theory of > operation section with a circuit walkthrough, etc. It could be helpful for > you to also take a look at the manual for the 13181 or 13183 controller set, > as you'll

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Hello Jay et. al... I appreciate the feedback. I begin to understand - so, for example an HP2100 with the 7970 tape option had a specific tape controller board that talked direct to the 7970. That certainly makes sense. I never used an HP2100 with a "real" tape drive such as the 7970 -

RE: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Jack wrote > Question: I understand that most (all?) of the '7970 drives interfaced > through the HP-IB IEEE-488 bus. To which AEK replied -- wrong. full stop. -- Welcome to our nook of the net. The grizzled veterans are here, and there's quite a few HP 2100/21MX folks

Re: (Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

On 10/3/17 4:50 PM, Jack Harper via cctalk wrote: > Question:  I understand that most (all?) of the '7970 drives interfaced > through the HP-IB IEEE-488 bus. wrong. full stop.

(Classic Computers) HP 7970 1/2" 9-Track Reel-to-Reel Tape Drive

Hello List - I just joined the list a few days ago. I am delighted to have found you. I have a couple of questions about the gorgeous HP 7970 Tape Drive - e.g., http://hpmuseum.net/images/7970A-43.jpg Question: I understand that most (all?) of the '7970 drives interfaced through the