7954Re: [midatlanticretro] Re: PDP-8 ... On display
- May 2, 2008
> the plotter on the leftBendix
> - what is the nameplate: IBM or CalComp?
> - do you have all the pen accessories?The screw on top and solenoid metal core the pen rides in are missing. From
looking at mine it looks like someone with a lathe should be able to make
a functional replacement. No other bits came with it.
Pictures that show the pen holder & plotter are here
> - is it interfaced to anything?It has an interface cable with some electronics which if I understand
correctly they used to hook it up to the PDP-8 console port to generate
the step pulses.
> The reason I ask: I have an identical IBM 1627 plotter complete withIf you could spare some paper for the museum that would be nice.
> manual, both wood boxes of accessories, and lotsa paper rolls for it!
For the pickup roll did it use the cardbord core the paper came on?
Both mine and the museum one didn't have a pickup roll. I used a piece
of plastic pipe.
What accessories did yours come with?
I have the big brother, the 563 interfaced to my PDP-8.
http://www.pdp8online.com/563/563.shtml. Brought it to the last
VCF east. http://www.pdp8online.com/shows/vcfe07/vcfe07.shtml
When I was looking for paper it seems to be unobtainable in pin feed
30 ish" that mine needs. I finally found 1 1/2 rolls from someone who
used to have a plotter. For demos I have been using pinfeed printer
paper. For pens I have cut down normal ballpoints but
the small tips it needs also seem to be getting hard to find.
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