The magnet leaves a DC field on the tape. This could then magnetize
everything in your tape deck, which would then tend to erase tapes as you
play them. The standard way of erasing tape is to use a decreasing AC
field.

Harold


On Wed, 21 Feb 2001 05:02:39 -0800 Andy Faulkner <andyf97@YAHOO.COM>
writes:
> why not just use a magnet
>
>
>
> --- Leo De Palo <tenaglia@BIGFOOT.COM> wrote:
> > Hi PIC'er friend,
> >
> > I have been a strange request to build a device able
> > to erase the video VHS
> > tape.
> >
> > I have in mind to build  a coil of 15 cm. of
> > diameter and using a PIC, to
> > generate a continuos frequency sweep.
> >
> > Passing the tape into this coil, i suppose the tape
> > will be erased.
> >
> > Wat do you think about the idea??
> >
> > Wich range of frequency should be used to erase the
> > tape??
> >
> >
> > Tahnks in advance and regards
> >
> > Leo
> >
> > --
> > http://www.piclist.com hint: PICList Posts must
> > start with ONE topic:
> > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other
> > [BUY]:,[AD]: ->Ads
> >
> >
>
>
> =====
>
> Andy Faulkner andyf97@yahoo.com
> Pyrosync International http://www.pyrosync.co.uk
>
> Tel +44 778 896  6087.....................UK Dial 0778 896 6087
>
> Fax +44 870 132 3275.....................UK Dial 0870 132 3275
> http://www.event-supplies.co.uk
> http://www.spectacular-fireworks.co.uk
>
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Auctions - Buy the things you want at great prices!
> http://auctions.yahoo.com/
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE
> topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]:
> ->Ads
>
>

FCC Rules Online at http://hallikainen.com/FccRules
Lighting control for theatre and television at http://www.dovesystems.com

________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
http://dl.www.juno.com/get/tagj.

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics