recovering cartridge tapes (was: Tek fiches found!)

[Tony Duell]

> 
> 
> 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

Many QIC types (including DC300s) used serpentine recording. I don't 
think the smalelr tapes used, for example, in the HP terminals, HP 98x5, 
HP80-seires, DEC TU58, etc did. But later QIC drives using similar tapes 
probably did use serpentine recording.

> 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.

Eh? DC300 tapes were used for QIC11, etc recording .And it was serpentine.

-tony