recovering cartridge tapes (was: Tek fiches found!)

[Richard]

In article <4C46A57E.15148.5E8BCB at cclist.sydex.com>,
    "Chuck Guzis" <cclist at sydex.com>  writes:

> [...]  Almost all cartridge DC-
> style tapes are recorded "serpentine" style--i.e. start in one 
> direction, shift the head, reverse, etc...

This is news to me.  Every cartridge tape I've ever used recorded data
to the end and then stopped.  I don't recall seeing any mechanism for
shifting the tape head in HP264x terminals with DC100 cartridges nor
in Tektronix 4051 terminals with DC300 cartridges.

> So the spooling scheme had better work.  I'm not aware of any 32-
> channel (for example) QIC heads.    

QIC tapes are something different from DC300 and DC100 tapes.
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