28 Oct
2008
28 Oct
'08
1:32 p.m.
On 28 Oct 2008 at 19:00, Tony Duell wrote:
You should be able to find the +5V and ground pins (at
least) by tracing
the connections from the 6 pin connector to the logic ICs.
The QT-8/842 even uses the same power connector as an SA-800 (i.e. 6
pin locking). And the motor is indeed AC. I have QT-8's with both
120v 60Hz and 220v 50Hz motors--and a pulley to convert the 50Hz
motor to spin the drive at 360 RPM.
Generally, the QT-8 is a drop-in for the SA-800 drives. It mostly
has the same jumpers, including HS and 8/16/32 sector selection as
well as the same bezel configuration.
Bitsavers has all of the appropriate poop.
About the only problem I've ever had with mine is the tendency for
the head support springs to hang up, thereby making contact with the
media impossible. Fortunately, it's easy to correct--just nudge the
head laterally within its supports.
All in all, a good drive; better than most 8" drives and a darned
sight better than the Qumetrak 5.25" models.
Cheers,
Chuck