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 | | From: | Mark Masters | | Subject: | Re: DLT tape erasing in San Diego | | Date: | Sun, 12 Dec 2004 17:47:02 -0800 |
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 | On Sun, 12 Dec 2004 00:17:04 -0800, Bart Bailey wrote:
>In Message-ID:<88bnr05pts6k5upesm40fj8m2epifone03@4ax.com> posted on
>Sat, 11 Dec 2004 18:34:04 -0800, Mark Masters wrote: Begin
>
>>Hi All,
>>
>>Anyone know of a local company that offers erasing/degaussing services for DLT
>>tape? I have some that I want to use with a DLT 1 drive. After getting some
>>used tapes, I found out that they need to be fully erased or the DLT IV format
>>will be rejected by the drive.
>>
>>Thanks,
>>Mark
>
>Why can't you DYI with a bulk eraser?
>Stop by your local Radio Shack and ask for a #44-233a.
Thank you for the suggestions. I sure wish it could be done with something that
inexpensive but it can't. The #44-233a isn't powerful enough. DLT IV tapes
require a much stronger magnetic field to completely erase them back to a
virgin state.
The drives saturate the magnetic particles on the tape with a very strong
field. The thin film head in the DTL 1 drive can't generate a strong enough
field to complete erase the tape. It requires something like 3-5 times the
magnetic field that is generated by a bulk eraser designed to do audio tapes or
floppies.
Thanks
Mark
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