peclark's latest activity

With the help of a new, and very generous, friend from the forum here, I was able to replace my bad floppy drive, and the new floppy...

fantastic find, thank you! uploaded a quick before and after, in this video you're only hearing the fans in the two power supplies...

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...

I just set this up myself... If you go through the demo program, you go through the 'd' option, then 'en DL11' - and that's it... If...

It's working! One issue that was tripping me up was the default vector address for the DEQNA in the build script was 400, but the...

yep, it is. Thanks for that - I didn't understand the positioning of the cards very well. I'll correct it...

I figured out my problem with the RQDX3 - turns out the problem was ME... when I tested the configuration above, I had failed to put...

I added back the DELQA, and the system still boots up fine. I then added the RQDX3, and the system fails to boot, just waits...

That worked! I removed the RQDX3, moved the UC07 in it's place (also removed the DELQA I forgot to mention was in there too), Jumpers...

hmmm I may have got the address mixed up in my mind, and not double checked... ok I'll try again. I'll remove the RQDX3... also forgot...

Here's the setup I tested: Jumpers on the KDJ11-A were 1-8 IN, 9 Out I also tried 1-7 IN, 8-9 Out The UC07 manual says to put 3 & 7...

So I gave the 11/73 CPU card a try, and I was successfully able to boot to ODT, but I didn't have access to my UC07 - and I'm pretty...

My old fans were Torin TA450 - which according to a catalog I found, seems these models are 106cfm. They don't seem to spec fans...

The cooling fans on my Micro PDP11/23 were wearing out - the bearings in one were failing and the fan would no longer spin, and the...

I was just doing some research on how to get the qbone to autostart my memory service when the computer is turned on, and I noticed this...