Re: [midatlanticretro] Acquired a PDP-8/E
- On Fri, May 17, 2013 at 08:27:34PM -0500, Kyle Owen wrote:
> A friend of mine has semi-permanently lent me a PDP-8/E. It's in prettyDave McGuire said most of what I was going to. You don't need to make
> good shape, but the key is missing. It seems to have 8k of core, a
> high-speed paper tape interface, a serial interface, and several other
> cards. I'm a bit confused on where to go from here, though. I suppose I
> need to track down a key. I'd also love to get a Model 33 teletype, but I
> think I'll make a working current loop converter first. I'd like to make
> some music with it via an AM radio, but I wouldn't quite know where to
a current loop converter. The M8650 can do both RS-232 and current loop.
You just need to make the right cable.
For the music there are programs you can download that will do it. I can
find one to use standalone when your ready. Looks like you have the
high speed tape reader board. I assume you didn't get the PC04/PC05 to
go with it. The white board is custom.
- 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