On Tuesday 18 July 2006 13:21, Nico de Jong wrote:
From: "Al Kossow" <aek at
bitsavers.org>
You should be able to connect the heads directly
to the preamp, and
use the
tapewizl directly. I was going to try recovering HP and Apple 40meg
tapes this way using a TU58 transport. I haven't looked at the head
geometry on the different drives that take DC100 carts yet, though.
I know I've scanned
some documentation on the 3M transport, will need to see if I've
pdf'ed it yet.
Would this principle work for recovery of 4mm (DAT) and 8 mm
(Exabyte) tapes? It happens regularly that customers ask if I can
Exabyte drives use helical scan, so it'd probably be more difficult to
do on them. It'd probably make more sense to take an Exabyte drive,
and modify it as necessary. But yes, the principle should be mostly
the same (except that you need to worry about having the tape moving at
the correct speed (and the head spinning at the right speed and angle)
as well.
4mm DAT drives use stationary heads, so it'd probably be a bit easier to
do this with one of those.
But with either, the tape is in a cartridge, so you'd probably want to
use an actual drive mechanism instead of a modified 9-track with a
different head (though that's probably obvious).
Pat (not by any means a tape/storage expert)
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