18 Aug
2007
18 Aug
'07
2:30 p.m.
On 17 Aug 2007 at 22:58, Tony Duell wrote:
I would be _very_ suprised if it was a 'raw' interface like QIC-36. Since
the tapes are pre-formated, and have various markers on them, you can't
just write an aribtrary bit pattern ot the tape (you risk overwriting the
markers), which a raw interface would generally allow you to do.
It's much more likely to be a 'formatted' interface. With a 50 pin
connector, my first guess would be QIC-02.
-tony
The OP might want to look at that site and follow
the links for
'storage', 'magnetic tape' and 'HP9144' (or 'HP9145'). I
think that will
turn up a like or twon that will be helpful
Thanks, Tony. Mystery solved. The drive in question probably takes
DC600HC or DC600XTD "Iotamat" preformatted tapes. That would explain
the 3M-labeled EPROM on the tape MPU board (uses an MC6800). Well,
the drive will go back onto the shelf; I don't even know what the 50-
conductor interface is supposed to connect to, though I suspect it
may be a cousin of a QIC-36 type.