Re: Aquired PDP 11/23

2017-03-12 Thread allison via cctalk
On 03/12/2017 04:56 PM, Systems Glitch via cctech wrote: >> Are dectape II tapes expensive? > TU58? They're hard to come by, but the good news is you can *emulate* them > with a PC and a serial port (or USB adapter). That's how I run XXDP on most > of my systems, and pretty much all of the system

Re: Aquired PDP 11/23

2017-03-12 Thread Systems Glitch via cctalk
> Are dectape II tapes expensive? TU58? They're hard to come by, but the good news is you can *emulate* them with a PC and a serial port (or USB adapter). That's how I run XXDP on most of my systems, and pretty much all of the systems I check out for people. You've got a DLV11-J in there so you

Re: Aquired PDP 11/23

2017-03-12 Thread Pete Turnbull via cctalk
On 12/03/2017 17:24, Noel Chiappa via cctalk wrote: > From: Devin Davison > This past week I managed to pick up a pdp 11/23. Nice system; the CPU has the MMU and FPP And it's a Rev.D (you can tell from the jumper layout), so full 22-bit. you've got what's probably a 256KB memory ca

Re: Aquired PDP 11/23

2017-03-12 Thread devin davison via cctalk
The thing on the top has to do with the tape drives, i think it is the controller. the drives plug into it, and from there it wires into a serial port, at least as far as i can tell. Much appriciated on the offer to trade for the memory board. It has been slow going with my 11/34, if i can get this

Aquired PDP 11/23

2017-03-12 Thread devin davison via cctalk
This past week I managed to pick up a pdp 11/23. Excited to finally have a qbus system, it is quite small compared to my 11/34. Attached are some pictures showing what i picked up. I am in the process of stress testing the power supply before turning it on. The whole machine was quite dirty and i

Re: Aquired PDP 11/23

2017-03-12 Thread Noel Chiappa via cctalk
> From: Devin Davison > This past week I managed to pick up a pdp 11/23. Nice system; the CPU has the MMU and FPP, you've got what's probably a 256KB memory card (an NS23M - documentation is available - depending on the chips, it can be 64KB or 256KB - if the former, let me know, I'll sw

Re: Aquired PDP 11/23

2017-03-12 Thread Noel Chiappa via cctalk
> From: Devin Davison > This past week I managed to pick up a pdp 11/23. Nice system; the CPU has the MMU and FPP, you've got what's probably a 256KB memory card (an NS23M - documentation is available - depending on the chips, it can be 64KB or 256KB - if the former, let me know, I'll sw