I think you will find enough information here and in a web search.
Please follow the links on my page for degrading tapes.
There is a link to the Ampex tape baking patent (this copy hosted on my
site) directly above the heading for Ampex 406 and related tapes.
Please also note the caution directly above that.
Anyway, if you have further questions, please let me know.
I don't know if I go into this or link to it in that post, but Eddie
Ciletti wrote an article YEARS ago "If I had known you were coming, I
would have baked a tape" or something close. It is also published on
Wendy Carlos's website.
Many of us on smaller budgets use the Nesco/American Harvest
dehydrators. My only suggestion is try to place it where you won't be
breathing the exhaust.
On 2012-08-19 1:05 PM, James Roth wrote:
> 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
> 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.
> 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
Quality tape transfers -- even from hard-to-play tapes.