Final Word on PDP-8 Switches
Last week I got to try out how the switches turned out. Installing them
was somewhat difficult and time consuming, as slipping in the switch
into the brackets is made difficult by the hinge pin and limited space
The final result is good. The switches do not align perfectly, but
I'm not certain they ever have. They do toggle very nicely, and the
panel certainly appears complete. I would say the project was a success.
Now, we just have to make the electronics actually work. That should be
easy. Or not.
I bought a new time-waster this weekend. Both GTA: Liberty City
Stories and GTA: Vice City Stories were marked down, so I got
them both. GTA is my favourite game universe, so it is surprising that I
held out this long without buying them. Perhaps it is because they are
only for PS2, and I find it really difficult to use that controller.
Also, compared to my PC, the resolution, framerate, and responsiveness
are low. Still, the games are good.
] | posted @ 23:42 | link
Update on PDP-8 Switches
Over the past few weeks I have been working on-and-off at producing the
switches required to replace the ones broken on the PDP-8 at Carleton. And
Of the 26 toggle switches on the panel, only three were still intact. Ten
needed new hinge rods, which I produced out of stainless steel. A total of
13 needed to be replaced altogether, eight brown and five gray. I made a
two-part mold using Alumilite's rubber, and then cast the switches using
their quick-set resin. There were a few bubbles, but only the visible ones
were filled. The 1/16" stainless steel rods used for the hinge pins, 12mm
long, were cast right into the resin.
This weekend was spent finishing them off. I primed with Krylon. For the
brown switches, I found that Testor's "1166 Flat Brown" enamel was a perfect
match. This is in the small, cheap bottles. The gray switches were a little
harder; I started with Testor's ModelMaster Camouflage Gray and tinted with
the brown paint until it matched the original switches very closely.
The finish is not perfect, but when mixed up with the original switches
as in the linked photo, the copies are hard to pick out. "Good enough"
is good enough.
] | posted @ 04:48 | link