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- Xref: sparky rec.audio:19582 rec.music.phish:7341
- Newsgroups: rec.audio,rec.music.phish
- Path: sparky!uunet!munnari.oz.au!titan!titan!tpearson
- From: tpearson@titan.trl.OZ.AU (Trevor Pearson)
- Subject: Re: type III tapes
- Message-ID: <1993Jan28.002603.13958@trl.oz.au>
- Sender: root@trl.oz.au (System PRIVILEGED Account)
- Organization: Telecom Research Labs, Melbourne, Australia
- References: <fhq39vj@rpi.edu>
- Date: Thu, 28 Jan 1993 00:26:03 GMT
- Lines: 28
-
- monitn@marcus.its.rpi.edu (Nicholas Monitto) writes:
- > falcon@camelot.bradley.edu (D. Nathan Hood) writes:
- >
- > >to the best of my knowledge type III tapes are the kind that are used to
- > >record a video signal, like VHS and Betamax... if i am wrong please let me
- > >know... i have asked this question before and have never really gotten a
- > >straigh answer...
- > >--
- >
- > Type III was an audio tape back many years ago. It (obviously) fell between II
- > (CrO2) and IV ('metal'), and I believe was some kind of hybrid of the two. It
- > fell out of use some time ago, and has no individual support on today's gear.
- > As far as I know it has nothing to do with video tape.
- >
- >
-
- Type III was FeCr (Ferrochrome) a two layer tape using both Feric oxide
- and chromium dioxide layers as the name implies. On most decks that had
- a FeCr position they used normal bias with chrome EQ. The tapes I have
- work very well when properly optimized but they are not amajor
- improvement such as metal. I don't think the world needed another tape
- type with minimal advantages so they promptly fell by the wayside when
- metal tapes were introduced. Also the improvements in type I tapes such
- as cobolt doping and the introduction of chrome equivalents such as TDK
- super avilyn took away the advantages of producing a two layer tape
- which would have cost more.
-
-
-