[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference napalm::commusic_v1

Title:* * Computer Music, MIDI, and Related Topics * *
Notice:Conference has been write-locked. Use new version.
Moderator:DYPSS1::SCHAFER
Created:Thu Feb 20 1986
Last Modified:Mon Aug 29 1994
Last Successful Update:Fri Jun 06 1997
Number of topics:2852
Total number of notes:33157

189.0. "demagnetising tape decks" by --UnknownUser-- () Wed Nov 20 1985 11:28

T.RTitleUserPersonal
Name
DateLines
189.1SIVA::FEHSKENSWed Nov 20 1985 16:299
From what I understand the "pros" all use the "plug in" kind.  See the
profuse documentation Tascam provides with any of their decks.  Note
that a hand held demagnetizer can do all metal parts of the tape path,
not just the heads.  The risk with one of these is turning it on near the
deck - a no-no of unbounded proportions.  I store mine in another part of
the room to remind me to stay away from the deck until I've turned the
demagnetizer on.

len.
189.2KATADN::BOTTOMThu Nov 21 1985 08:148
My Tascam owners manual says that the heads should be demagnitized every 
time you record (once daily if you work that often). They recommend the 
plug in kind. When demagnatizing the heads with the tape deck power on 
you can damage the preamp circuits. All metal parts should be 
demagnatized and care should be taken not to touch the heads with the 
demagnaitzer if the tip is not plastic coated.

dave
189.3ERLANG::DICKENSThu Nov 21 1985 09:286
I once heard that you can use a soldering iron as a head demagnetizer.
I tried this with my cheap Sharp stereo deck, and it did seem to help a lot,
but I don't think I'll try it with my new Tascam

						-Jeff

189.4SIVA::FEHSKENSFri Nov 22 1985 12:075
re .3 - good grief, you're not serious are you?  I'd be scared of the
heat screwing up the magnetic properties of the head, never mind the tip
not producing a strong enough field to do any demagnetizing.

len.
189.5ERLANG::DICKENSFri Nov 22 1985 15:117
I actually did it, but I plugged in the the iron, and immediately brought
it near the head and then pulled it away before it warmed up.  I remember
that it did cause a marked improvement in the sound, but then that beat up
deck had probably never been demagnetized before.  (admitted hack)

						-Jeff