12 Dec
2020
12 Dec
'20
10:25 p.m.
On Sat, Dec 12, 2020 at 11:30 PM Josh Dersch via cctalk
<cctalk at classiccmp.org> wrote:
After removing the above, you can remove the floppy drive (the normal
3 cable to an 8" drive and I think 3 screws) and the power supply
(under the floppy drive, there are 3 output cables with in-line plugs
and sockets, an IEC type main input on the back of the PSU chassis,
and 2 screws at the front). The fan tray can come out too, but it's
not worth doing. The empty chassis (no drives, boards, or PSU) is
just about liftable.
The original mouse for the PERQ 1 (covered in the schematics book) is
very rare and I don't think Bob had one. Most PERQ 1s and 1As used the
Sumagraphics bit bad one, as you say with a GPIB interface.
The PERQ 2 mouse is a smaller tablet with a normal mouse-shaped thing
(3 buttons) wired to it. There are 2 versions, for portrait and
landscape machines. The cable ends in a DIN plug that goes into a
socket on the monitor. The PERQ 2 keyboard is connected in the same
way.
A PERQ 1 keyboard has a DA15 plug on the end that goes into the back
of the processor box.
A PERQ 1 monitor has IIRC a DC37 plug carrying power, sync and video
A PERQ 2 montor has a DA15 cable for syncs and keyboard/mouse signals.
A BNC cable for video. Portrait monitors have a power cable from the
back of the processor box too. Landscape monitors have an IEC mains
input connector, sometimes there's a cable to the power output socket
on the PERQ, this operates a relay in the monitor to power the monitor
up when you turn the system on. Others just have a power switch on the
monitor.
-tony
Question: Do
the card cages and stuff come off the later Perqs as well?
Not as easily. They can all be disassembled to a point but it's not nearly
as simple as the PERQ 1/1A.
If you pull the side, front, and rear panels off (be careful there -- the
drives are mounted to the rear, and there are cables to deal with), and
pull the boards, it should be significantly lighter. Question: What
does a Perq mouse look like?
It varies. See the Digibarn T2 pictures for one example; the Summagraphics
Bit Pad One was another common option -- big white tablet about 15" square
with a 4-button wired puck. GPIB interface. There was also the Kriz
tablet which was smaller and had three buttons.