jlang's latest activity

I've been dismayed once or twice that SS-50 systems don't really fit any of the existing genres. Threads for them usually end up in the...

But, it might pay to consider that if you are on the edge of a spec, there will be some specimens of the same type number IC which will...

OK, folks. There are clearly strong emotions here, but I think this thread has run its course. Nobody is convincing anyone else here of...

Everyone, Let’s discuss this, as we do everything, with calm and civility. I’m going to leave this thread open so long as we can be...

The system controller is the only device allowed to drive IFC (interface clear) I expect the jumper is set to allow the PET to be...

I recently completed some long overdue upgrades to my Micro-PDP11/23, and thought I would share them here. I got this machine about 20...

Documentation - ha, who needs that :)! Dave

Rabbit Hole Computing, my company, has been working on such a thing quietly for the last year and a half. While it isn't 100% ready for...

I figured out where I got the MSCP boot. I ripped it out of SIMH. SIMH boots by loading a bootstrap image into memory then executing...

If you have a second serial port (DL11 compliant - e.g. DLV11-J) I would be inclined to use a serial-based TU58 emulator initially. In...

I boot a RQDX3 using ODT. The MSCP boot code is 65 words. I can't find the code online at the moment. I know it's out there...

I've seen how this stuff gets disposed of. The instruments are stacked on a pallet. The cables/pods go in a big box. The pallets get...

This. It's amazing that a large number of LAs on that auction site advertised as "working" come with no pods. What good are they...

I use minicom on a Pi. Set the intercharacter and interline delays for maximum speed and minimum boredom! Dave

I use minicom as a terminal for a PDP-11/2. I wrote a small program that minicom calls that sends The bootstrap to ODT (with delays) You...