16 Jun
2015
16 Jun
'15
10:48 a.m.
On Jun 16, 2015, at 09:10 , tony duell <ard at
p850ug1.demon.co.uk> wrote:
You would, of course, not know which track it was reading, so you would have to output 2
blocks, one on
each track, at once. And how would you detect it was writing? Look for an extra signal at
the coupling head
or something?
That seems to me like it would be the trickiest part. The TU58 schematic appears to
indicate that there are separate erase head gaps (not on a separate head like in audio
cassette drives), so maybe those could be monitored to detect when a track is being
written? Of course, that probably means that a custom 4-gap head would need to be made
with gaps matching the two read/write and two erase gaps (and a concave surface, too,
rather than recycling some audio tape head with suitable geometry to line up with just the
read/write gaps.
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/