PDP-8/e and terminals in West Sussex, UK
bqt at softjar.se
Tue Nov 11 07:08:07 CST 2008
Julian Skidmore wrote:
> Hi folks,
> I guess people have looked at the pdp-8/m-2 Chassis:
> There are some interesting goodies as it's completely max'd out!
> It appears to have 3x8K memory (a stunning 24K!).
> M8320 = OmniBus Bus terminator loads.
> G111 = 8K Memory.
> M849 = Memory Shield.
> M8357 = RX8E (8" Dual Floppy controller).
> M8650 = Teletype control.
> M847YA = Hardware Bootstrap Loader.
> M8350 = Posibus interface (surprising).
> M837 = Memory Extension / Timeshare.
> M8300 = CPU Regs.
> M8310 = CPU Regs Ctrl.
> M8330 = CPU Timing.
> It was last tested (amazingly) as late as July 1990, a mere 18 years ago.
> Again, I'm wondering who took the pdp-8/m: Was it the Surrey Museum or Peter?
> Also Peter, you said it was a simple circuit, do you have the circuit diagrams and procedure for converting a normal PC-based 5.25" Floppy drive to work as an RX-50? I did use PUTR recently on a PC to transfer RT-11 to 5.25" disk so I could install it on my pdp-11/73 (before the PSU failed!); so I know they *can* be used in some sense.
> Also Johnny, are you actually offering a pdp-8/m or /f!!!!?
I've already handed out a couple of 8/m and 8/a systems over the years.
I didn't plan on splitting with any more, but I might be convinced to
part with one for some other "fun" hardware.
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