LISTSERV mailing list manager LISTSERV 16.0

Help for ARSCLIST Archives


ARSCLIST Archives

ARSCLIST Archives


ARSCLIST@LISTSERV.LOC.GOV


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

ARSCLIST Home

ARSCLIST Home

ARSCLIST  February 2012

ARSCLIST February 2012

Subject:

Re: ovens for baking tapes

From:

Jim Lindner <[log in to unmask]>

Reply-To:

Association for Recorded Sound Discussion List <[log in to unmask]>

Date:

Mon, 20 Feb 2012 07:02:08 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (67 lines)

Richard, maybe you did not see my first posting. I went to some effort to point out that there were several classes of devices that were referred to generically as "lab ovens" and I specifically pointed out issues with using devices with temperature ranges that are significantly higher then those that tapes should be baked at. Maybe I should have used  "lab class" device in my terminology - and I did mention incubators as one type of device that were good to use specifically because the range of temperatures are in the band of those used for tape baking. As lab class devices they are precise, can produce repeatable results, and are designed for the type of duty cycle that a professional might require for doing work of this sort. I also specifically recommended using an external thermometer that is alarmed so that the variation of any temperature above or below the min/max would set off an alarm. 

I do have to say that I am impressed that Richard went to the trouble of actually instrumenting a dehydrator, and that his particular dehydrator on that particular run looks like it did a pretty good job of not cycling too badly. I suspect however, that if I were to do a tape baking comparison where I wanted to bake at 2.5 degrees higher and hold it there for 2 days that it would be hard to do on this device. Typically the temperature range of devices of this sort routinely vary as much as 10 per cent and cycle in those ranges - far too much for this type of application. 

And Shai - interesting spin on the headphone analogy. My point, which you missed,  was that the same reason you use a quality device that has some precision and is designed for the application in other aspects of a migration process (like headphones), applies to using a lab grade device as well for baking. It is the same logic. I am also pleased to hear that you now finally state publicly that you are a professional, something you have clearly said you are not on other lists, and the basis for your refusal to give your affiliation. So which is it - are you a professional or not?  Will you now finally give your affiliation? Who are you anyway? Is Shai a "nom de plume"?

I did clearly waste a large amount of time trying to provide information on different classes of devices that are suitable for doing this type of work to answer Joe Salelrno's question - and that was the only reason why I did it - to be helpful. I will not bother doing that again on this list. 

For those who may STILL be interested in pursuing a professional class device that has the capacity and control that I would hope anyone who would want repeatable and controllable results would use - here is an example of a device that might fit the requirements. It is a Fisher Incubator that is used and appears to have been used in a bottle capping application and probably has a large enough cavity for what you may need. They are asking $600 and it likely would be worth while communicating with the seller to ask some questions. There are many more, this is just one I quickly picked to illustrate the kind of unit.
http://www.ebay.com/itm/Fisher-Isotemp-200-Series-Incubator-Model-230G-/380411134753?pt=LH_DefaultDomain_0&hash=item5892454321#ht_500wt_995

I should have also mentioned that new incubator or lab class devices suitable for baking are about $2000 US depending on features, which is pretty reasonable when compared to the prices of other things you use in this field.

Me giving oven advice is also somewhat ironic because as Richard and several of the rest of you know - I am not a big tape baking fan for reasons that have been posted here and elsewhere on several occasions. If you are interested in reading why, one could go through the archive and read about it. But to answer the question of another poster - YES I have baked tapes and YES I have a great deal of experience - if you are interested in my qualifications you need only google me or look at my linked-in page - it is public. 

There is a difference between "lashing out" and making ones point in a hopefully persuasive and passionate fashion. This is a subtlety that is sometimes difficult to differentiate when not in person, and one of the disadvantages of a list-serve as a general communications device. There has been no "lashing out" on this email or any other. Passion and expertise yes, lashing out no.

So as they say in Australia - to those of you who love their food dehydrators for tape baking - "Good on Ya". To those who want another option - the information has been provided. Maybe I should buy some Nesco stock! 



Jim Lindner

Email: [log in to unmask]
    
  Media Matters LLC.
  450 West 31st Street 4th Floor
  New York, N.Y. 10001

eFax (646) 349-4475
Mobile: (917) 945-2662
     
www.media-matters.net
Media Matters LLC. is a technical consultancy specializing in archival audio and video material. We provide advice and analysis, to media archives that apply the beneficial advances in technology to collection management.





On Feb 19, 2012, at 9:51 PM, Richard L. Hess wrote:

> Hi, Tom,
> 
> I actually have three American Harvest dehydrators. One is a "Mold Machine" the other is the main one which I have used for years and I bought a larger one last summer for the Mt. St. Helens 14" reel seismic tapes--though you must de-flange the reel to make it fit. Pity.
> 
> Anyway, this picture is a sample that I saved, but I do run tests on my dehydrators with recording thermometers to see how they work.
> 
> I've seen a lot of nasty eBay stuff (and lots of good stuff), but I'm not certain I'd trust a thermostat or controller in a lab oven that's meant to go to much higher temperatures any more than (or perhaps not as much as) the food dehydrator. I suspect that if the food dehydrator thermostat stuck on, there there is a fusible link in there some where to get its UL label, though I have not dissected one.
> 
> http://www.richardhess.net/arsc/am_harvest_fd50.pdf
> 
> I think staying within a 2.5 C window (not plus/minus--that's plus/minus 1.25 C) is pretty good and all you need for tape baking. That's about +/- 2% Celsius and I hate to think what it is in Kelvins...perhaps +/- 0.006%?
> 
> Cheers,
> 
> Richard
> 
> On 2012-02-19 7:57 PM, Tom Fine wrote:
>> By the way, the American Harvester dehydrator is quite "repeatable" as far as producing playable tapes, many times over many years. Results speak for themselves. But again, horses for courses. There are more expensive and complex ways to skin the same cat. 
> 
> -- 
> Richard L. Hess                   email: [log in to unmask]
> Aurora, Ontario, Canada           (905) 713 6733     1-877-TAPE-FIX
> http://www.richardhess.com/tape/contact.htm
> Quality tape transfers -- even from hard-to-play tapes.
> 

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

November 2020
October 2020
September 2020
August 2020
July 2020
June 2020
May 2020
April 2020
March 2020
February 2020
January 2020
December 2019
November 2019
October 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003
October 2003
September 2003
August 2003
July 2003
June 2003
May 2003
April 2003
March 2003
February 2003
January 2003

ATOM RSS1 RSS2



LISTSERV.LOC.GOV

CataList Email List Search Powered by the LISTSERV Email List Manager