Re: Acquired a PDP-8/E
- Sharpie markings are easily removed with IPA (Isopropyl Alcohol).
Keep this in mind when cleaning old equipment that is supposed to have Sharpie markings that you want to retain.
Mechanically cleaning injected molded plastics usually affects the surface texture. I would avoid unless there is no other solution.
--- In firstname.lastname@example.org, Dave McGuire <Mcguire@...> wrote:
> On 05/20/2013 12:09 PM, Kyle Owen wrote:
> > Yeah, the Sharpie marks made me sad too. Depending on what the switches are
> > made of, I may can use a light solvent, but I think a slight polishing would
> > actually do a better job.
> Yes, I'd err on the side of mechanical polishing rather than chemical.
> That's very old plastic.
- On 06/06/2013 12:54 PM, Kyle Owen wrote:
> That looks like a nice product, but yes, it's certainly expensive. I've gotOS/8 needs a random-access storage device; paper tape won't do it.
> some FPGA background myself, along with several different microcontrollers,
> so I may see about creating something that will work with my high-speed paper
> tape interface. That could be considered an OS/8 storage device, yes?
Magnetic tape drives are *physically* sequential-access, of course, but the
TU56 (for example) is logically a random-access, block-oriented device. (with
highly variable latency ;))
> I wouldIf this was a generally-directed question...The book you want for "most
> have no idea how to go about writing a driver for it yet, but perhaps it'd be
> in my best interest to start reading up on the commands for the card and then
> learn more about OS/8. Do you have any suggestions on recommended reading for
things OS/8" is the "OS/8 Handbook". It is excellent. Try to find a paper
copy if you can, but it's available in PDF on bitsavers:
Dave McGuire, AK4HZ
New Kensington, PA