On 12/18/20 8:10 PM, Jim Manley via cctalk wrote:
> http://www.wendycarlos.com/bake%20a%20tape/baketape.html
>
> Wendy Carlos is the performer who produced "Switched-On Bach", the
> soundtrack for "A Clockwork Orange", "Sonic Seasonings", and a bunch of
> other amazing recordings created on single
http://www.wendycarlos.com/bake%20a%20tape/baketape.html
Wendy Carlos is the performer who produced "Switched-On Bach", the
soundtrack for "A Clockwork Orange", "Sonic Seasonings", and a bunch of
other amazing recordings created on single-voice Moog synthesizers, using
multi-track tape recorders e
Hello Jim,
Am 18.12.2020 um 09:42 schrieb jim stephens via cctalk :
> I ran across a reference to this on FB. It appears to be from 2008, so may
> be well known or obsolete material.
>
> The other interesting info at the end of the article is the contact name and
> info about someone who rest
On 5/1/20 4:50 PM, Alan Perry via cctalk wrote:
> All of the QIC-24 cartridges sitting next to me right now have posts
> that are machined with 1-2mm deep tape guides. I don't see how to
> install tubing over the posts and have the guides still do their job.
>
> As I noted, I have tried isopropyl
On 5/1/20 4:19 PM, Chuck Guzis via cctalk wrote:
On 5/1/20 1:59 PM, Curious Marc via cctalk wrote:
Agreed. They sure are pressed in, then riveted in for good measure. You’d have
to drill them out first. Not an easy modification.
Marc
PTFE 2mm ID 3mm OD tubing is a standard size. That migh
On 5/1/20 1:59 PM, Curious Marc via cctalk wrote:
> Agreed. They sure are pressed in, then riveted in for good measure. You’d
> have to drill them out first. Not an easy modification.
> Marc
PTFE 2mm ID 3mm OD tubing is a standard size. That might fit.
--Chuck
Agreed. They sure are pressed in, then riveted in for good measure. You’d have
to drill them out first. Not an easy modification.
Marc
> On Apr 30, 2020, at 2:18 PM, Al Kossow via cctalk
> wrote:
>
> On 4/29/20 10:01 PM, Curious Marc via cctalk wrote:
>> Or replacing the posts with ones mach
Al reckoned
> On 4/29/20 10:01 PM, Curious Marc via cctalk wrote:
>> Or replacing the posts with ones machined from Teflon or Delrin?
>
> The posts are staked in. You might be able to make tiny rollers to go over
> the pins
> Their working diameter isn't super critical
That's a good idea. Would c
On 4/29/20 10:01 PM, Curious Marc via cctalk wrote:
Or replacing the posts with ones machined from Teflon or Delrin?
The posts are staked in. You might be able to make tiny rollers to go over the
pins
Their working diameter isn't super critical
I see the tape sticking to posts syndrome in my limited experience with HP QIC
tapes also (DC100 / DC2000). The best I have come up with is wipe the posts
with isopropanol. But I had not thought of lubricating them for a 1 time read,
interesting idea. Or replacing the posts with ones machined fr
On 4/28/20 1:14 PM, r.stricklin via cctalk wrote:
>
> On Apr 28, 2020, at 11:47 AM, Chuck Guzis via cctech wrote:
>
>> Rather than try to clean the gunk off the tape, which is probably a
>> fool's errand, I coat the tape with cyclomethicone
>
> Just as a word of caution, I've had at least one ca
On Apr 28, 2020, at 11:47 AM, Chuck Guzis via cctech wrote:
> Rather than try to clean the gunk off the tape, which is probably a
> fool's errand, I coat the tape with cyclomethicone
Just as a word of caution, I've had at least one catastrophic outcome trying
this with a QIC tape. Use too much
sony PR-150 will jam a machine up and makes a squeeking type noise as well.
then theres sticky shed syndrom that leaves a nasty mess caugh shamrock
tape caugh caugh
On Tue, Apr 28, 2020 at 1:47 PM Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> I'm a bit surprised that this is even a "
Out of curiosity has anyone tried running tapes at different temperatures,
for instance in a relative cold or hot environment? Either on a simple
winder or even a recovery drive.
On Tue, Apr 28, 2020 at 11:47 AM Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> I'm a bit surprised that thi
On 4/28/20 3:37 PM, Alan Perry via cctalk wrote:
wiping the posts with acetone or wiping the tape with cyclomethicone? Should I be baking the tapes? If so, what is a safe way to bake QIC
cartridges?
I bake the carts with the bands removed and the covers off in a food dehydrator
I also wrap
On 4/28/20 11:47 AM, Chuck Guzis via cctalk wrote:
I'm a bit surprised that this is even a "thing" in the audio business.
Restorers have been baking audio tapes for a long time.
That is acknowledged in the slides, isn't it?
"Thermal Baking: A popular, poorly understood remedy"
"Most common
On 4/28/20 11:47 AM, Chuck Guzis via cctalk wrote:
For whatever it's worth
Magnetic tape recovery people live in silos
I doubt anyone at LoC has ever even heard of you or me, or that they will ever
see the years of discussions we've had on this subject. I wonder if
they he even talked to the
I'm a bit surprised that this is even a "thing" in the audio business.
Restorers have been baking audio tapes for a long time.
One thing not discussed (maybe it doesn't occur in audio) is that there
can be issues in binder formulation, at least in digital tapes. In
particular, 3M tapes, most nota
At 05:56 AM 4/28/2020, you wrote:
>https://www.morressier.com/article/towards-understanding-thermal-remediation-degraded-archival-reeltoreel-audio-tapes/5e736c6bcde2b641284abb13
Lower right pic on "layers in contact" slide, looks like it was inverted...
- John
On 4/28/20 3:56 AM, Al Kossow via cctalk wrote:
https://www.morressier.com/article/towards-understanding-thermal-remediation-degraded-archival-reeltoreel-audio-tapes/5e736c6bcde2b641284abb13
https://listserv.loc.gov/cgi-bin/wa?A2=ARSCLIST;d144d59c.2004
> -Original Message-
> From: Eric Smith [mailto:space...@gmail.com]
> Sent: 11 July 2017 04:02
> To: r...@jarratt.me.uk; Rob Jarratt ; General
> Discussion: On-Topic and Off-Topic Posts
> Cc: Rich Alderson ; General Discussion: On-Topic
> Posts
> Subject: Re:
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 v
> -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'
> Subject: RE: tape baking (Rob Jarratt)
>
> From: Michael Thomps
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 OEM'
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 th
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 files. Nothing great, but it does the job. Try SMALLCAT
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
char
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Michael
> Thompson via cctalk
> Sent: 09 July 2017 15:41
> To: cctech
> Subject: Re: tape baking (Rob Jarratt)
>
> >
> > Date: Fri, 7 Jul 2017 21:19:03 +0100
> &g
>
> Date: Fri, 7 Jul 2017 21:19:03 +0100
> From: "Rob Jarratt"
> 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 think it was a drum printer but I don't
>
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
http://netpbm.source
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 also including an ASC
> -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
>
> Subject: RE: Line printer art: (was Re: tape baking)
>
>
>
> >
> > 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 fo
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 1955-19
> 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 th
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
>> http://storageconference.us/2008/presentations/3.Wednesday
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 us
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 thos
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 a
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
> before
> 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 then, I've been saying that
On 7/7/17 11:10 AM, Chuck Guzis via cctalk wrote:
> I've puzzled over how to do tape flux-transition recording in any
> meaningful way.
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/presentat
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 s
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.
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 dat
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
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck
> Guzis via cctalk
> Sent: 07 July 2017 08:11
> To: CCtalk
> Subject: Re: Line printer art: (was Re: tape baking)
>
> On 07/06/2017 10:42 PM, Dave Wade wrote:
>
>
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:
http://w
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 to
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 place
> -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
>
> Subject: Re: Line printer art: (was Re: tape baking)
>
> On
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Ethan
> Dicks via cctalk
> Sent: 06 July 2017 20:02
> To: Chuck Guzis ; General Discussion: On-Topic and Off-
> Topic Posts
> Subject: Line printer art: (was Re: tape baking)
>
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 hav
.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 fair amou
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 su
> -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
> Subject: Re: tape baking
>
>
> > On Jul 6, 2017, at 3:
> 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 printer that takes continuous
>>> forms any more.
> -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
> Subject: Re: Line printer art: (was Re: tape baking)
>
> You kno
> 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, congratulations! I don't
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.
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
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 recogniz
> -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
> Subject: Re: tape baking
>
>
> > On Jul 6, 2017, at
> 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 first-character FORTRAN carriag
> 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 get-around-to-it list. I'll st
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 the files, including JOHNDEAN
and MOON (I did not
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.
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
> -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
> Subject: Re: tape baking
>
>
> > On Jul 4, 2017, at 08:1
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
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 c
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
associate who is reasonably s
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 can
> On Jul 6, 2017, at 2:35 PM, Mark J. Blair via cctalk
> wrote:
> ...
>
> I would enjoy seeing the ASCII translated files. I don't have any experience
> dealing with EBCDIC-era stuff yet.
EBCDIC is easy, just grab an IBM Green Card. I'd recomment not using a
translation if possible, since t
> 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 whole tape--I ran my tape
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 l
> 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 more to
> the wiper about h
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?
T
> 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
>> mechanism.
>>
>
> I
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 to
> 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 play with an old TK50 tape
> -Original Message-
> From: Christian Corti [mailto:c...@informatik.uni-stuttgart.de]
> Sent: 05 July 2017 08:48
> To: r...@jarratt.me.uk; Rob Jarratt ; General
> Discussion: On-Topic and Off-Topic Posts
> Subject: RE: tape baking
>
> On Mon, 3 Jul 2017, Rob
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 no
> -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
> Subject: Re: tape baking
>
> After you got the TK50 tapes an
After you got the TK50 tapes and the TZ30 drive working together, what
computer system and software utilities did you use to recover the data
from the tapes?
Did you first recover the data into a format that preserved blocking
information such as SIMH .TAP format? (
http://simh.trailing-edge.com/d
> -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
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 need
> 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 material
> -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:
>
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.
Al Kossow 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 hours with some luck, but I
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
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 07
On 07/02/2017 01:29 PM, Rob Jarratt wrote:
> That I don't know. I bought a small oven thermometer to check first,
> which I grant is not very accurate or fast, but it didn't seem to
> vary much. I also found some suggestions that fan ovens are a bit
> more consistent, but have no real proof of cou
> -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:
> &
> -Original Message-
> From: william degnan [mailto:billdeg...@gmail.com]
> Sent: 02 July 2017 18:57
> To: r...@jarratt.me.uk; Rob Jarratt ; General
> Discussion: On-Topic and Off-Topic Posts
> Subject: Re: tape baking
>
> Have you also experimented with disket
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
beca
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
thin
I recently read 300-odd RX-50 diskettes. All but 10-15 read, many w/o
error, some with lots of errors. I'm guessing that baking won't help the
few that didn't read since they weren't stuck to the lining of the
diskette...
What's the theory behind baking floppies? For tapes it makes sense to help
w
Have you also experimented with diskettes using this technique. May apply
in some cases.
Bill
On Sun, Jul 2, 2017 at 1:27 PM, Rob Jarratt via cctalk <
cctalk@classiccmp.org> wrote:
> Yes, that was me.
>
> Regards
>
> Rob
>
> > -Original Message-
> > From: cctalk [mailto:cctalk-boun...@cl
1 - 100 of 101 matches
Mail list logo
