RE: tape baking (Rob Jarratt)

2017-07-11 Thread Rob Jarratt via cctalk
son <ri...@livingcomputers.org>; General Discussion: On-Topic > Posts <cct...@classiccmp.org> > Subject: Re: tape baking (Rob Jarratt) > > On Mon, Jul 10, 2017 at 3:38 PM, Rob Jarratt via cctalk > <cctalk@classiccmp.org> wrote: > Do you have any videos (wit

Re: tape baking (Rob Jarratt)

2017-07-10 Thread Eric Smith via cctalk
On Mon, Jul 10, 2017 at 3:38 PM, Rob Jarratt via cctalk < cctalk@classiccmp.org> wrote: > Do you have any videos (with sound!) of the LP20 operating? > The LP20 is just the printer interface. It looks exactly the same whether it's operating or not, and doesn't make any sound unless something is

RE: tape baking (Rob Jarratt)

2017-07-10 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Rich > Alderson via cctalk > Sent: 10 July 2017 20:05 > To: 'General Discussion: On-Topic Posts' <cct...@classiccmp.org> > Subject: RE: tape baking (Rob Jarratt) > >

RE: tape baking (Rob Jarratt)

2017-07-10 Thread Rich Alderson via cctalk
From: Michael Thompson Sent: Sunday, July 09, 2017 7:41 AM > A while ago the Living Computers: Museum + Labs borrowed my LP20 controller > so they could clone the boards for one of their PDP-10s. Since they went > through that effort they must have a big line printer. LP27, specifically. An

Re: Line printer art: (was Re: tape baking)

2017-07-10 Thread Charles Anthony via cctalk
On Mon, Jul 10, 2017 at 4:19 AM, Martin Hepperle via cctalk < cctalk@classiccmp.org> wrote: > For those interested in viewing those line printer files but without a > suitable printer I have hacked together a small Java program for viewing > and > exporting the files. Nothing great, but it does

Re: Line printer art: (was Re: tape baking)

2017-07-10 Thread Keven Miller(rtt) via cctalk
iccmp.org> To: <cctalk@classiccmp.org> Sent: Mon 10 Jul 2017 05:19 AM Subject: Re: Line printer art: (was Re: tape baking) For those interested in viewing those line printer files but without a suitable printer I have hacked together a small Java program for viewing and exporting the f

Re: Line printer art: (was Re: tape baking)

2017-07-10 Thread Martin Hepperle via cctalk
For those interested in viewing those line printer files but without a suitable printer I have hacked together a small Java program for viewing and exporting the files. Nothing great, but it does the job. Try SMALLCAT first. I understood that the first column contains FORTRANish line advance

RE: tape baking (Rob Jarratt)

2017-07-09 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Michael > Thompson via cctalk > Sent: 09 July 2017 15:41 > To: cctech <cct...@classiccmp.org> > Subject: Re: tape baking (Rob Jarratt) > > > > > Date: Fri, 7

Re: tape baking (Rob Jarratt)

2017-07-09 Thread Michael Thompson via cctalk
> > Date: Fri, 7 Jul 2017 21:19:03 +0100 > From: "Rob Jarratt" <robert.jarr...@ntlworld.com> > Subject: RE: tape baking > > > I long to hear again the sound of the line printer that was attached to > the > > DECSYSTEM-20 I used to use. I

Re: Line printer art: (was Re: tape baking)

2017-07-09 Thread Jeff Woolsey via cctalk
You know, I have about four different tapes with those Harbison posters on them. Different formats, too. They're probably ubiquitous by now. For those of you without printers who still want to see the posters, asciitopgm from the netpbm package can be coaxed to do this. See

Re: Line printer art: (was Re: tape baking)

2017-07-08 Thread Alan Frisbie via cctalk
Al Kossow wrote: > Need to update my reader anyway soon, so I'm going > to append something similar to what you did the new > images I create, probably just a ascii text record > and a label picture. For the many hundreds of 9-track tapes I'm turning into image files, I am

RE: Line printer art: (was Re: tape baking)

2017-07-08 Thread Dave Wade via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Peter > Coghlan via cctalk > Sent: 07 July 2017 23:32 > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk@classiccmp.org> > Subject: RE: Line printe

RE: Line printer art: (was Re: tape baking)

2017-07-07 Thread Peter Coghlan via cctalk
> > > > > If anyone's running Hercules or some other uses-EBCDIC emulator, here's > > the link to the .tap image file. > > > > https://app.box.com/s/8rxbihjjnw5zdkesym4cjwqswekufagh > > > > --Chuck > > Sadly I don't think that's much use on Hercules as it needs an AWS or HET > file. Is there a

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Chuck Guzis via cctalk
On 07/07/2017 12:46 PM, Al Kossow via cctalk wrote: > It is literally "you can't save everything, where would you put it?" > > You can be completely buried by piles of unknown data on magnetic > media. And yet, I'll venture that it's a pretty safe bet that all of the data recorded between

RE: tape baking

2017-07-07 Thread Rob Jarratt via cctalk
> I long to hear again the sound of the line printer that was attached to the > DECSYSTEM-20 I used to use. I think it was a drum printer but I don't know the > model (I may have some materials around that mention the model, not sure > where they are now though). I could never house one of these

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Al Kossow via cctalk
yup On 7/7/17 12:33 PM, Chuck Guzis via cctalk wrote: > On 07/07/2017 12:04 PM, Al Kossow via cctalk wrote: > >> >> The way JBI did it was to digitize the capstan encoder as a clock >> reference for tape motion obliquely referenced in >>

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Al Kossow via cctalk
On 7/7/17 12:28 PM, Chuck Guzis via cctalk wrote: > It brings up another aspect. I've done a batch of tapes that had > nothing more that the originator's name and an inventory number. Upon > recovering data, the customer had no idea what it meant or how it was > created or even the system

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Chuck Guzis via cctalk
On 07/07/2017 12:04 PM, Al Kossow via cctalk wrote: > > The way JBI did it was to digitize the capstan encoder as a clock > reference for tape motion obliquely referenced in > http://storageconference.us/2008/presentations/3.Wednesday/5.Bordynuik.pdf They mention a 36-track tape head. Were

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Chuck Guzis via cctalk
On 07/07/2017 12:17 PM, Al Kossow via cctalk wrote: > I'm much less hopeful on any other parallel tape formats, since there > are so few and the desire to recover any of that has been low. It brings up another aspect. I've done a batch of tapes that had nothing more that the originator's name

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Al Kossow via cctalk
On 7/7/17 12:08 PM, Paul Koning wrote: >> And I'm moving towards flux-level archiving and away from using >> stock tape transports. >> >> But then, I've been saying that for 15+ years now and haven't done it. > > It would be great to have that capability, after the company that had it >

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Paul Koning via cctalk
> On Jul 7, 2017, at 1:29 PM, Al Kossow via cctalk > wrote: > > > > On 7/7/17 10:26 AM, Al Kossow via cctalk wrote: > >> I stopped beating that horse years ago. > > And I'm moving towards flux-level archiving and away from using > stock tape transports. > > But

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Al Kossow via cctalk
BI recovery process involved using specially developed tape drives with 36 magnetoresistive (MR) heads, tape baking (10 h at 175°), bit detection and processing techniques to read the 800 bit-per-inch, 7-track tapes. Based on the original Nimbus HRIR system documentation, GSFC was then able

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Chuck Guzis via cctalk
On 07/07/2017 10:26 AM, Al Kossow via cctalk wrote: > I stopped beating that horse years ago. They also assume that all of the data > blocks read correctly, they don't save the error correction data if the block > had it, etc etc. > > Need to update my reader anyway soon, so I'm going to append

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Al Kossow via cctalk
On 7/7/17 10:26 AM, Al Kossow via cctalk wrote: > I stopped beating that horse years ago. And I'm moving towards flux-level archiving and away from using stock tape transports. But then, I've been saying that for 15+ years now and haven't done it.

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Al Kossow via cctalk
On 7/7/17 9:35 AM, Chuck Guzis via cctalk wrote: > I've voiced my opinion before of being a bit surprised that neither AWS > nor TAP makes any provision for metadata. The tape data bits don't > tell the whole story. I stopped beating that horse years ago. They also assume that all of the

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Chuck Guzis via cctalk
On 07/07/2017 08:25 AM, Dave Wade wrote: > The header is six bytes long. Two are the length of the current > block. Two of the bytes are the length of the previous block, so you > can do read backwards, two of the bytes contain flag bits. One of the > flags says this chunk is the first part of a

RE: Line printer art: (was Re: tape baking)

2017-07-07 Thread Dave Wade via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck > Guzis via cctalk > Sent: 07 July 2017 08:11 > To: CCtalk <cctalk@classiccmp.org> > Subject: Re: Line printer art: (was Re: tape baking) > > On 07/06/2017 10:42 PM,

Re: Line printer art: (was Re: tape baking)

2017-07-07 Thread Chuck Guzis via cctalk
On 07/06/2017 10:42 PM, Dave Wade wrote: > Sadly I don't think that’s much use on Hercules as it needs an AWS or HET > file. Is there a format converter any where? Dunno, but it should be pretty simple. TAP is discussed with the SIMH documentation and the AWS format is discussed here:

Re: tape baking

2017-07-07 Thread Ron Pool via cctalk
Thanks, Chuck! On Thu, Jul 6, 2017 at 3:05 PM, Chuck Guzis via cctalk < cctalk@classiccmp.org> wrote: > On 07/06/2017 11:43 AM, Paul Koning via cctalk wrote: > > > EBCDIC is easy, just grab an IBM Green Card. I'd recomment not using > > a translation if possible, since translations are likely

Re: tape baking

2017-07-07 Thread Ron Pool via cctalk
I'd love to also get a copy. ASCII would be my preference. On Thu, Jul 6, 2017 at 2:20 PM, Chuck Guzis via cctalk < cctalk@classiccmp.org> wrote: > On 07/06/2017 11:09 AM, Mark J. Blair via cctalk wrote: > > > Did you apply it to the whole tape prior to reading it, or did you apply > it in

RE: Line printer art: (was Re: tape baking)

2017-07-06 Thread Dave Wade via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck > Guzis via cctalk > Sent: 06 July 2017 21:03 > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk@classiccmp.org> > Subject: Re: Line printer art: (was

RE: Line printer art: (was Re: tape baking)

2017-07-06 Thread Dave Wade via cctalk
ubject: Line printer art: (was Re: tape baking) > > On Thu, Jul 6, 2017 at 1:59 PM, Chuck Guzis via cctalk <cctalk@classiccmp.org> > wrote: > > It worked--I retrieved a tape of line printer art from Princeton quite > > successfully. Oddly, nobody was interested in

Re: Line printer art: (was Re: tape baking)

2017-07-06 Thread Charles Anthony via cctalk
On Thu, Jul 6, 2017 at 3:18 PM, Chuck Guzis via cctalk < cctalk@classiccmp.org> wrote: > You know, I do a fair amount of this stuff. The confidential/secret > stuff I keep that way (e.g. 100 tapes that I'm doing for NASA this > summer), but there's also a fair amount of public stuff that I do

Re: Line printer art: (was Re: tape baking)

2017-07-06 Thread Paul Anderson via cctalk
cmp.org] On Behalf Of Chuck > Guzis > > via cctalk > > Sent: 06 July 2017 23:19 > > To: General Discussion: On-Topic and Off-Topic Posts < > cctalk@classiccmp.org> > > Subject: Re: Line printer art: (was Re: tape baking) > > > > You know, I do a

Re: tape baking

2017-07-06 Thread Chuck Guzis via cctalk
On 07/06/2017 03:57 PM, Rob Jarratt via cctalk wrote: 11/730. > > I long to hear again the sound of the line printer that was attached > to the DECSYSTEM-20 I used to use. I think it was a drum printer but > I don't know the model (I may have some materials around that mention > the model, not

RE: tape baking

2017-07-06 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mark J. > Blair via cctalk > Sent: 06 July 2017 23:39 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Subject: Re: tape baking > >

Re: tape baking

2017-07-06 Thread Guy Sotomayor Jr via cctalk
> On Jul 6, 2017, at 3:39 PM, Mark J. Blair via cctalk > wrote: > > >> On Jul 6, 2017, at 3:34 PM, jim stephens via cctalk >> wrote: >> >> >> >> On 7/6/2017 10:59 AM, Chuck Guzis via cctalk wrote: >>> Go figure. Perhaps nobody owns a line

RE: Line printer art: (was Re: tape baking)

2017-07-06 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck Guzis > via cctalk > Sent: 06 July 2017 23:19 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Subject: Re: Line printer art: (was Re: tape

Re: tape baking

2017-07-06 Thread Mark J. Blair via cctalk
> On Jul 6, 2017, at 3:34 PM, jim stephens via cctalk > wrote: > > > > On 7/6/2017 10:59 AM, Chuck Guzis via cctalk wrote: >> Go figure. Perhaps nobody owns a line printer that takes continuous >> forms any more. > I'm moving a Data Products 2230 this weekend. Oooh,

Re: tape baking

2017-07-06 Thread jim stephens via cctalk
On 7/6/2017 10:59 AM, Chuck Guzis via cctalk wrote: Go figure. Perhaps nobody owns a line printer that takes continuous forms any more. I'm moving a Data Products 2230 this weekend.

Re: tape baking

2017-07-06 Thread jim stephens via cctalk
On 7/6/2017 1:25 PM, Al Kossow via cctalk wrote: yup, the SAM HARBISON ones are classic, esp SPOCK http://q7.neurotica.com/Oldtech/ASCII/ I thought you had put up the Harbison tape I sent on bitsavers. If not, you can do so. Prof Harbison said he had no problem with sharing it. The tape I

Re: Line printer art: (was Re: tape baking)

2017-07-06 Thread Chuck Guzis via cctalk
You know, I do a fair amount of this stuff. The confidential/secret stuff I keep that way (e.g. 100 tapes that I'm doing for NASA this summer), but there's also a fair amount of public stuff that I do have permission to share. I've done the hard work in translating the data to something

RE: tape baking

2017-07-06 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mark J. > Blair via cctalk > Sent: 06 July 2017 21:46 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Subject: Re: tape baking > > &

Re: tape baking

2017-07-06 Thread Mark J. Blair via cctalk
> On Jul 6, 2017, at 11:50 AM, Chuck Guzis via cctalk > wrote: > > I've uploaded the files to my Box account: > > https://app.box.com/s/liuljs46noaz58grdwuj170mjh66qzm8 > > I have the permission of the owner to share these. Note that many of > them depend upon

Re: tape baking

2017-07-06 Thread Mark J. Blair via cctalk
> On Jul 6, 2017, at 12:42 PM, Rob Jarratt wrote: > > > Why not give baking a go then? Or have I missed something? I would of course > recommend trying with an unimportant tape first until you get a time and > temperature that works for your setup. Oh, it's on my

Re: Line printer art: (was Re: tape baking)

2017-07-06 Thread Ethan Dicks via cctalk
On Thu, Jul 6, 2017 at 3:01 PM, Ethan Dicks wrote: > On Thu, Jul 6, 2017 at 1:59 PM, Chuck Guzis via cctalk > wrote: >> It worked--I retrieved a tape of line printer art from Princeton quite >> successfully. I reviewed the ASCII copy. Several of

Re: tape baking

2017-07-06 Thread Al Kossow via cctalk
yup, the SAM HARBISON ones are classic, esp SPOCK http://q7.neurotica.com/Oldtech/ASCII/ On 7/6/17 10:59 AM, Chuck Guzis via cctalk wrote: > It worked--I retrieved a tape of line printer art from Princeton quite > successfully. Oddly, nobody was interested in a copy of the files.

Re: Line printer art: (was Re: tape baking)

2017-07-06 Thread Chuck Guzis via cctalk
On 07/06/2017 12:41 PM, Ethan Dicks wrote: > I got it from the Box link. Thanks! If anyone's running Hercules or some other uses-EBCDIC emulator, here's the link to the .tap image file. https://app.box.com/s/8rxbihjjnw5zdkesym4cjwqswekufagh --Chuck

RE: tape baking

2017-07-06 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mark J. > Blair via cctalk > Sent: 06 July 2017 17:47 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Subject: Re: tape baking > > &g

Re: Line printer art: (was Re: tape baking)

2017-07-06 Thread Ethan Dicks via cctalk
On Thu, Jul 6, 2017 at 3:01 PM, Ethan Dicks wrote: > Feel free to PM me a link to where I could get a copy of these art > files or reply here with it. I got it from the Box link. Thanks! -ethan

Re: tape baking

2017-07-06 Thread Chuck Guzis via cctalk
On 07/06/2017 11:43 AM, Paul Koning via cctalk wrote: > EBCDIC is easy, just grab an IBM Green Card. I'd recomment not using > a translation if possible, since translations are likely to be lossy. > There are EBCDIC characters that have no ASCII analog. All else being equal, I'd agree--but you

Line printer art: (was Re: tape baking)

2017-07-06 Thread Ethan Dicks via cctalk
On Thu, Jul 6, 2017 at 1:59 PM, Chuck Guzis via cctalk wrote: > It worked--I retrieved a tape of line printer art from Princeton quite > successfully. Oddly, nobody was interested in a copy of the files. I'm interested! I'm about to read a card deck for an old work

Re: tape baking

2017-07-06 Thread Chuck Guzis via cctalk
On 07/06/2017 11:35 AM, Mark J. Blair via cctalk wrote: > I don't have a tape cleaner. Maybe I should make one. In particular, for > those damned TK50 tapes! They do show up occasionally on eBay. Mine was NOS from a government surplus auction. Complete but for the bottle of Freon TF, but I

Re: tape baking

2017-07-06 Thread Mark J. Blair via cctalk
> On Jul 6, 2017, at 11:20 AM, Chuck Guzis via cctalk > wrote: > > On 07/06/2017 11:09 AM, Mark J. Blair via cctalk wrote: > >> Did you apply it to the whole tape prior to reading it, or did you apply it >> in place on the tape drive while reading the tape? > > The

Re: tape baking

2017-07-06 Thread Chuck Guzis via cctalk
On 07/06/2017 11:09 AM, Mark J. Blair via cctalk wrote: > Did you apply it to the whole tape prior to reading it, or did you apply it > in place on the tape drive while reading the tape? The whole tape--I ran my tape cleaner at low speed and used a strip of 1/2" thick synthetic felt glued to a

Re: tape baking

2017-07-06 Thread Mark J. Blair via cctalk
> On Jul 6, 2017, at 10:59 AM, Chuck Guzis via cctalk > wrote: > > That's what I do when baking doesn't do the trick; e.g. binder > bleed-through. But, as Al says, don't overdo it. I used a thick felt > wiper to deposit a thin film on a 2400' reel of tape. I added

Re: tape baking

2017-07-06 Thread Chuck Guzis via cctalk
On 07/06/2017 09:58 AM, Mark J. Blair via cctalk wrote: > Can the cyclomethicone be used to help address sticky shed on a tape? > If it evaporates too quickly to apply it to an entire tape before > reading, then perhaps by placing a wiper in the tape path to apply it > during reading would work?

Re: tape baking

2017-07-06 Thread Mark J. Blair via cctalk
> On Jul 6, 2017, at 09:55, Al Kossow via cctalk wrote: > > > > On 7/6/17 9:47 AM, Mark J. Blair via cctalk wrote: >> Maybe I could make a machine to allow me to unspool a TK50 tape while wiping >> on cyclomethicone and then re-spool it, perhaps by hacking up a drive

Re: tape baking

2017-07-06 Thread Al Kossow via cctalk
On 7/6/17 9:47 AM, Mark J. Blair via cctalk wrote: > Maybe I could make a machine to allow me to unspool a TK50 tape while wiping > on cyclomethicone and then re-spool it, perhaps by hacking up a drive > mechanism. > It evaporates too quickly. I have also seen it dissolve binder if you use

Re: tape baking

2017-07-06 Thread Mark J. Blair via cctalk
> On Jul 4, 2017, at 08:16, Al Kossow via cctalk wrote: > > The 'out-gassed material' is water, which has been absorbed > by the binder, which is hydroscopic. Has anybody experimented with drying media in a vacuum chamber at room temperature? My abortive attempt to

RE: tape baking

2017-07-05 Thread Rob Jarratt via cctalk
> -Original Message- > From: Christian Corti [mailto:c...@informatik.uni-stuttgart.de] > Sent: 05 July 2017 08:48 > To: r...@jarratt.me.uk; Rob Jarratt <robert.jarr...@ntlworld.com>; General > Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org>

RE: tape baking

2017-07-05 Thread Christian Corti via cctalk
On Mon, 3 Jul 2017, Rob Jarratt wrote: All I could do was prop open the tape door with a paper clip. 45C in my fan oven worked for me. 55C in my oven seemed to mostly demagnetise the tape. Other ovens may be different, so it is best to experiment with something that doesn't matter. You can

RE: tape baking

2017-07-04 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Glen Slick > via cctalk > Sent: 05 July 2017 03:12 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Subject: Re: tape baking > >

Re: tape baking

2017-07-04 Thread Glen Slick via cctalk
>> -Original Message- >> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow >> via cctalk >> Sent: 02 July 2017 18:04 >> To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> >> Subject: tape baking >&g

RE: tape baking

2017-07-04 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel > Chiappa via cctalk > Sent: 04 July 2017 15:53 > To: cctalk@classiccmp.org > Cc: j...@mercury.lcs.mit.edu > Subject: Re: tape baking > > > From: Al Kossow

Re: tape baking

2017-07-04 Thread Al Kossow via cctalk
On 7/4/17 7:53 AM, Noel Chiappa via cctalk wrote: > > From: Al Kossow > > > You need moving air, though. > > I'm not sure how you do that well in a TK50 style cartridge. > > Hmm, maybe not? I start with the need for moving air - which I do not > dispute, just wondering what the

Re: tape baking

2017-07-04 Thread Noel Chiappa via cctalk
> From: Al Kossow > You need moving air, though. > I'm not sure how you do that well in a TK50 style cartridge. Hmm, maybe not? I start with the need for moving air - which I do not dispute, just wondering what the needed effect is. I don't think it can be removing out-gassed

RE: tape baking

2017-07-03 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow > via cctalk > Sent: 03 July 2017 20:39 > To: cctalk@classiccmp.org > Subject: Re: tape baking > > > > On 7/3/17 11:49 AM, Alan Frisbie via cctalk wrote: >

Re: tape baking

2017-07-03 Thread Al Kossow via cctalk
On 7/3/17 11:49 AM, Alan Frisbie via cctalk wrote: > So, what are the currently-recommended tape baking temperatures and times? In the range you're using. You need moving air, though. I'm not sure how you do that well in a TK50 style cartridge.

Re: tape baking

2017-07-03 Thread Alan Frisbie via cctalk
Al Kossow <a...@bitsavers.org> wrote: https://strandgames.com/blog/magnetic-scrolls-games-source-code-recovered and now we know why all the questions were asked recently So, what are the currently-recommended tape baking temperatures and times? I have been using 58C/136F for 24 to 48

Re: tape baking

2017-07-02 Thread Chuck Guzis via cctalk
On 07/02/2017 11:34 AM, Warner Losh via cctalk wrote: > What's the theory behind baking floppies? For tapes it makes sense to > help with self-adhesion, but what's the benefit to single surfaced > media that doesn't overlap? I'll add one more type of failure to the list--where the binder bleeds

Re: tape baking

2017-07-02 Thread Ed via cctalk
Yep we handle a lot of video media. Bake Bake Bake! Really works well. over t time it will revert but... you can back again! Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 7/2/2017 11:46:06 A.M. US Mountain Standard Time, cctalk@classiccmp.org writes: On

RE: tape baking

2017-07-02 Thread Rob Jarratt via cctalk
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck Guzis > via cctalk > Sent: 02 July 2017 19:40 > To: cctalk@classiccmp.org > Subject: Re: tape baking > > On 07/02/2017 10:56 AM, william degnan via cctalk wrote: > &

RE: tape baking

2017-07-02 Thread Rob Jarratt via cctalk
> -Original Message- > From: william degnan [mailto:billdeg...@gmail.com] > Sent: 02 July 2017 18:57 > To: r...@jarratt.me.uk; Rob Jarratt <robert.jarr...@ntlworld.com>; General > Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Subject:

Re: tape baking

2017-07-02 Thread Chuck Guzis via cctalk
On 07/02/2017 11:34 AM, Warner Losh via cctalk wrote: > What's the theory behind baking floppies? For tapes it makes sense to help > with self-adhesion, but what's the benefit to single surfaced media that > doesn't overlap? The audio tape guys pretty much took the lead on this one, probably

Re: tape baking

2017-07-02 Thread Chuck Guzis via cctalk
On 07/02/2017 10:56 AM, william degnan via cctalk wrote: > Have you also experimented with diskettes using this technique. May apply > in some cases. Haven't we been here before, oh, about 2-3 years ago? I bake just about every bit old old media I get in, nowadays with very good success. I

Re: tape baking

2017-07-02 Thread Warner Losh via cctalk
..@classiccmp.org] On Behalf Of Al > > Kossow > > > via cctalk > > > Sent: 02 July 2017 18:04 > > > To: General Discussion: On-Topic and Off-Topic Posts < > > cctalk@classiccmp.org> > > > Subject: tape baking > > > > > > > > > https://strandgames.com/blog/magnetic-scrolls-games-source- > > code-recovered > > > > > > and now we know why all the questions were asked recently > > > > >

Re: tape baking

2017-07-02 Thread william degnan via cctalk
gt; From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al > Kossow > > via cctalk > > Sent: 02 July 2017 18:04 > > To: General Discussion: On-Topic and Off-Topic Posts < > cctalk@classiccmp.org> > > Subject: tape baking > > > > > > https

RE: tape baking

2017-07-02 Thread Rob Jarratt via cctalk
Yes, that was me. Regards Rob > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow > via cctalk > Sent: 02 July 2017 18:04 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Subject: t

tape baking

2017-07-02 Thread Al Kossow via cctalk
https://strandgames.com/blog/magnetic-scrolls-games-source-code-recovered and now we know why all the questions were asked recently