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ARSCLIST  August 2012

ARSCLIST August 2012

Subject:

Re: AMPEX 407 TAPE

From:

"[log in to unmask]" <[log in to unmask]>

Reply-To:

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

Date:

Sun, 19 Aug 2012 17:50:58 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (99 lines)

I damaged a red plastic reel once, apparently the color caused it to 
absorb more heat and melt. This has never happened with transparent 
plastic reels in my experience.

joe salerno


On 8/19/2012 1:40 PM, Dennis Rooney wrote:
> Dear Ben,
>
> The correct technical term for "sss" is binder hydrolysis. A convection
> oven at 130F or a fruit desiccator are the usual devices for "baking"
> tapes. I have never done so except with aluminum reels and flanges but have
> never heard of the technique damaging 3M plastic reels; by all means
> experiment if it would reassure you.
>
> DDR
>
> On Sun, Aug 19, 2012 at 2:24 PM, James Roth <[log in to unmask]> wrote:
>
>> Hello again,
>>
>> I have one more question about baking audio tape.
>> Should it be indirect heat and how far from the filament (heat source)
>> should the tape be?
>> What about the plastic reels?  These are 7-inch reels holding Ampex 407
>> tape.
>>
>> Maybe I should try baking an empty reel at 130 degrees Fahrenheit before I
>> try to bake the tapes in the reels.
>>
>> Please comment ASAP.
>>
>> Thanks,
>> Ben Roth
>>
>> -----Original Message-----
>> From: Association for Recorded Sound Discussion List [mailto:
>> [log in to unmask]] On Behalf Of James Roth
>> Sent: Sunday, August 19, 2012 1:05 PM
>> To: [log in to unmask]
>> Subject: Re: [ARSCLIST] AMPEX 407 TAPE
>> Importance: High
>>
>> Dear Richard,
>>
>> Thank you for answering my email.
>>
>> No, I did not bake it.  I did not know about baking tape.
>> Please tell me in what I should bake it, at what temp and for how long?
>>
>> Also, what is "SSS"?
>>
>>
>> -----Original Message-----
>> From: Association for Recorded Sound Discussion List [mailto:
>> [log in to unmask]] On Behalf Of Richard L. Hess
>> Sent: Friday, August 17, 2012 5:41 PM
>> To: [log in to unmask]
>> Subject: Re: [ARSCLIST] AMPEX 407 TAPE
>>
>> Ben,
>>
>> Did you bake this tape prior to attempting playback?
>>
>> This is classic SSS where the mag coat pulls off.
>>
>> The reason it happens closer to the hub is there is more pressure there.
>>
>> Please folks, don't try and play known SSS tapes without baking.
>>
>> Regards,
>>
>> Richard
>>
>>
>> On 2012-08-17 5:08 PM, James Roth wrote:
>>> Greetings everyone.
>>>
>>> I'm having some trouble with peeling Ampex 407 tape.
>>> The magnetic coating on the inner 100 or so feet is peeling like crazy.
>>> When I play it, the static electricity causes the tape to cling to the
>> layer just next to it (still on the reel).
>>> It's not crackling - just peeling.  The tape is from around 1977 and was
>> kept in a fairly cool/dry place.
>>>
>>> Ben Roth
>>>
>>
>> --
>> 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.
>>
>
>
>

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